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-The Project Gutenberg EBook of The Kansas University Quarterly, Vol. I,
-No. 1 (1892), by Various
-
-This eBook is for the use of anyone anywhere at no cost and with
-almost no restrictions whatsoever. You may copy it, give it away or
-re-use it under the terms of the Project Gutenberg License included
-with this eBook or online at www.gutenberg.org/license
-
-
-Title: The Kansas University Quarterly, Vol. I, No. 1 (1892)
-
-Author: Various
-
-Editor: Vernon Lyman Kellogg
-
-Release Date: July 26, 2017 [EBook #55207]
-
-Language: English
-
-Character set encoding: UTF-8
-
-*** START OF THIS PROJECT GUTENBERG EBOOK KANSAS UNIVERSITY QUARTERLY, V. I, NO. 1 (1892) ***
-
-
-
-
-Produced by Larry B. Harrison, Paul Marshall and the Online
-Distributed Proofreading Team at http://www.pgdp.net (This
-book was produced from images made available by the
-HathiTrust Digital Library.)
-
-
-
-
-
-
-Transcriber's Notes:
-
- Underscores "_" before and after a word or phrase indicate _italics_
- in the original text.
- Equal signs "=" before and after a word or phrase indicate =bold=
- in the original text.
- Small capitals have been converted to SOLID capitals.
- Illustrations have been moved so they do not break up paragraphs.
- Typographical errors have been silently corrected but other variations
- in spelling and punctuation remain unaltered.
-
-
-
-
- Vol. I. JULY, 1892 No. 1.
-
- THE KANSAS UNIVERSITY QUARTERLY
-
-
- COMMITTEE OF PUBLICATION
- E. H. S. BAILEY F. W. BLACKMAR
- W. H. CARRUTH C. G. DUNLAP
- E. MILLER S. W. WILLISTON
- V. L. KELLOGG, _Managing Editor_
-
-
- CONTENTS
-
- KANSAS PTERODACTYLS, PART I. _S. W. Williston_
- KANSAS MOSASAURS, PART I. _S. W. Williston and E. C. Case_
- NOTES AND DESCRIPTIONS OF SYRPHIDAE, _W. A. Snow_
- NOTES ON MELITERA DENTATA GROTE, _V. L. Kellogg_
- DIPTERA BRASILIANA, PART II. _S. W. Williston_
-
-
- PUBLISHED BY THE UNIVERSITY
-
- LAWRENCE, KANSAS
-
- _Price of this number, 50 cents_
-
- Entered at the Post-office in Lawrence as Second-class matter
-
- JOURNAL PUBLISHING HOUSE,
- LAWRENCE, KANSAS.
- 1892.
-
-
-
-
-KANSAS PTERODACTYLS.
-
-
-BY S. W. WILLISTON.
-
-PART I, WITH PLATE I.
-
-The first American species of the singular group of extinct Mesozoic
-reptiles variously know as Ornithosaurs, Pterosaurs or Pterodactyls was
-described by Marsh from a fragmentary specimen obtained in 1870, by the
-Yale College Expedition in Wallace County, Kansas. About a dozen other
-specimens were obtained by a similar expedition the following year in
-charge of Professor Marsh, or by Professor Cope, and were described by
-these authors shortly afterward. By far the largest number of known
-specimens, however, other than those in the Kansas University Museum,
-were obtained during the years 1874, ’75, ’76 and ’77 by parties of
-which Professor Mudge, Dr. H. A. Brous, E. W. Guild, George Cooper and
-myself were the members, and it was from these specimens that most
-of the published characters were derived. Many of these specimens
-are necessarily fragmentary ones, still the material now in the Yale
-College Museum is ample to elucidate everything of interest concerning
-these animals.
-
-During the past few years, the Museum of Kansas University has been
-enriched by a series of excellent specimens of these animals, obtained
-from the same regions, specimens that permit the solution of most of
-the doubtful characters and throw not a little light on the affinities
-of the Kansas forms.
-
-The species hitherto named are as follows:
-
-
-PTERANODON.
-
- _Pteranodon_ Marsh, Amer. Journ. Sci. xi, p. 508,
- June 1876; and xii, p. 479, Dec. 1876; xxiii, p. 253,
- April, 1882; xxvii, p. 423, May, 1881; Williston,
- Amer. Naturalist, xxv, p. 1174, Dec. 1891
-
-=Pteranodon occidentalis.=
-
- _Pterodactylus Oweni_ Marsh, Amer. Journ. Sci. i, p.
- 472, June 1871, Sep. p. 16 (nom. preoc).
-
- _Pterodactylus occidentalis_ Marsh, Amer. Journ. Sci.
- iii, p. 242, April 1872, Sep. p. 1; Cope, Cretac.
- Vert. p. 68, pl. vii, ff. 5, 6.
-
- _Ornithocheirus harpyia_ Cope, Proc. Amer. Phil. Soc.
- 1872, p. 471 (Cope).
-
-This species was originally based upon the distal end of two
-wing-metacarpals, and teeth. In the following year, a fuller
-description was given of additional remains referred to the same
-species and renamed _P. occidentalis_.
-
-=Pteranodon ingens.=
-
- _Pterodactylus ingens_ Marsh, Amer. Journ Sci. iii, p.
- 246, April 1872, Sep. p. 6.
-
- _Pteranodon ingens_ Marsh, Amer. Journ. Sci. xi, p.
- 508, June 1876.
-
-This species is based upon various bones of the wing-finger of several
-individuals, and three teeth.
-
-=Pteranodon umbrosus.=
-
- _Ornithocheirus umbrosus_ Cope, Proc. Amer. Phil. Soc.
- 1872, p. 471.
-
- _Pterodactylus umbrosus_ Cope, Cret. Vert. p. 65, pl.
- vii, ff. 1-4.
-
-Marsh (Amer. Journ. Sci. xii, p. 480, Dec. 1876) says this name is a
-synonym of _P. ingens_, published two days earlier. As this synonymy is
-not certain, and as Cope’s species has been figured, I am not ready to
-accept his views.
-
-=Pteranodon velox.=
-
- _Pterodactylus velox_ Marsh, Amer. Journ. Sci. iii, p.
- 247, April 1872, Sep. p. 8.
-
-Based upon the distal end of the right metacarpal of the wing-finger,
-and the proximal extremity of the adjoining first phalanx, two
-uncharacteristic parts of the skeleton, Marsh to the contrary
-notwithstanding. It is doubtful whether the direct comparison of the
-types will suffice to determine the species with certainty. “Both of
-the bones are somewhat distorted by pressure.”
-
-=Pteranodon longiceps.=
-
- _Pteranodon longiceps_ Marsh, Amer. Journ. Sci. xi,
- p. 508, June 1875; xxvii, p. 424, pl. xv, May 1884.
-
-Based upon a somewhat defective skull, without other bones.
-There is no evidence whatever that the species is distinct from the
-preceding.
-
-=Pteranodon comptus.=
-
- _Pteranodon comptus_ Marsh, Amer. Journ. Sci. xi, p.
- 509, June 1876.
-
-Based upon wing-bones of three individuals. The description is meagre.
-
-=Pteranodon nanus.=
-
- _Pteranodon nanus_ Marsh, Amer. Journ. Sci. xxi, p.
- 343, April 1881.
-
-Based upon various remains of one individual; the humerus, alone, is
-recognizably described.
-
-
-NYCTODACTYLUS.
-
-_Nyctosaurus_ Marsh, Amer. Journ. Sci. xii, p. 480, Dec. 1876. (nomen
-preoc.[1]).
-
-_Nyctodactylus_ Marsh, Amer. Journ. Sci. xxi, p. 343, April 1881: ibid.
-xxvii, p. 423, May 1884.
-
-[1] This preoccupation rests, so far as I am aware, upon Marsh’s
-statement. I can find no evidence of the name having been previously
-used.
-
-=Nyctodactylus gracilis.=
-
- _Pteranodon gracilis_ Marsh, Amer. Journ. Sci. xi, p.
- 508, June 1876.
-
- _Nyctosaurus gracilis_ Marsh, Amer. Journ. Sci. xii,
- p. 480, Dec. 1876.
-
- _Nyctodactylus gracilis_ Marsh, Amer. Jour. Sci. xxi,
- p. 343, April 1881.
-
-
-PTERANODON.
-
-
-=Skull.=
-
-Fragmentary portions of the skull of Pteranodon are not at all rare
-in the Kansas chalk; but it is exceedingly seldom that a complete,
-or even approximately complete specimen is found. Their great length
-and slenderness, together with the extensive pneumaticity of the
-bones, render their preservation, as a whole, a thing of great rarity.
-Probably the most nearly perfect one yet known is now in the Museum
-of Kansas University. It was discovered the past summer by Mr. E. C.
-Case, a member of the University Geological Expedition. The specimen
-was carefully cleaned on its upper surface, as it lay in the chalk, and
-then imbedded in plaster before removal. The surface now exposed was
-the under one, which surface is, almost invariably, better preserved
-and less distorted than the upper one in these animals. A figure of
-this specimen is given in Plate I. The only portion restored is that
-indicated by the line in the lower jaw; it is possible that this part
-of the symphysis may not be exactly as it is drawn. Other, incomplete,
-specimens in the Museum confirm the outlines, except in the occipital
-crest, which is not present. As stated by me in the American Naturalist
-(_l. c._), the type specimen of _Pteranodon_, also collected by myself,
-was incomplete, and the figures of it, as given by Marsh, are faulty.
-
-The elements of the skull are all so firmly united that they can
-not be distinguished. There are no indications whatever of a horny
-sheath enclosing the jaw, and it is improbable that the covering of
-these parts was essentially different from that in the slender jawed
-_Pterodactylidae_. In texture, the maxillaries are fine-grained, and
-wholly without the vascular foramina found in the corresponding bones
-of birds. The bones are composed of two thin and firm plates, separated
-by cavities which are bounded by irregular walls of bony tissue. In the
-compression from which all the Pterodactyl bones have suffered more or
-less, the greater resistance of these walls has caused irregularities
-upon both the outer and the inner surfaces. At the borders of the
-bones, where the thickness has been greater, the roughening is not
-observed.
-
-Seen from above, the skull is narrow, as stated by Marsh; but, contrary
-to his statement, there is not a sharp ridge extending along the
-upper border. This border is obtuse and rounded, and in the frontal
-region, flattened. The sagittal crest is large, but not nearly so
-large as it is figured by Marsh, the restored outline of whose figure
-is undoubtedly wrong. The texture of the bone forming the crest is
-materially different from that of the remaining bones of the skull.
-The bone is more roughened, and less firm. There is a well-developed
-ring of sclerotic ossifications. In the specimen figured, the separate
-plates measure from six to eight millimeters in diameter. They were
-not imbricated, as in the Pythonomorpha, but have a similar dense
-texture. There is a superior temporal arch, bridging over a small
-opening leading downward to the inferior temporal fossa. The following
-measurements will give the principal dimensions of this specimen.
-
- Length from tip of premaxillary to occipital condyle 680 millim.
- Extreme length of skull 780
- Extent of crest beyond orbit 145
- Greatest diameter of orbit 65
- Antero-posterior diameter of nasal opening 135
- Length of quadrate 120
- Width of lower jaw at articulation 22
-
-
-=Pubis.=
-
-In a previous paper on the anatomy of _Pteranodon_,[2] I stated that
-I had never seen the so-called “prepubic bones.” Since that time,
-however, an excellent specimen of them has been discovered among
-our material. The specimen of which they are a part consists of the
-larger portion of the skeleton, and is perhaps conspecific with the
-one to which the described pelvis belongs. The figure given herewith
-will convey a good idea of their shape. The bones of the two sides
-are firmly co-ossified, and have been pressed nearly flat; the figure
-represents them as they are spread out in one plane. The bone is
-very thin throughout, with a slight thickening at the ischial (_a_)
-attachment only. Lying contiguous with the anterior projection, is a
-slender ventral rib (_b_). It is possible that the curvature of this
-bone may be inward, rather than outward.
-
-[Illustration: FIG. 1.]
-
-[2] Amer. Naturalist, Dec. 1891, p. 1124. In this article the
-description of the foot-phalanges should read: “All are slender, except
-the second one in the third toe, and the second and third in the fourth
-toe, where they are scarcely longer than wide.”
-
-This peculiar structure of the pubis (I believe it represents the
-pubis, and not the prepubis), seems to be quite similar to that
-which obtains in the genus _Rhamphorhynchus_, and, perhaps also, in
-_Pterodactylus suevicus_ (_Cycnorhamphus_ Seeley), and very different
-from that found in other species of _Pterodactylus_.
-
-The principal measurements of the above described specimen are as
-follows:
-
- Antero-posterior expansion 40 millim.
- Length of symphysis 14
- Expanse of the united bones, as flattened 90
- Width of ischial process 11
-
-
-NYCTODACTYLUS.
-
-The type species of this genus was described as follows by its author
-(loc. cit. supra):
-
- “One of the smallest American species yet found is
- represented in the Yale Museum by several bones of the
- wing, a number of vertebrae and the nearly complete
- pelvis. The wing-bones preserved are elongated and very
- slender. The pelvis is unusually small, and there are five
- vertebrae in the sacrum. The last of the series indicates
- that the tail was short. The following are the principal
- measurements of this specimen:
-
- Length of ulna 187 millim.
- Length of metacarpal of wing-finger 300
- Antero-posterior diameter of outer condyle at distal end 15
- Transverse diameter of shaft, above condyles 13
- Length of first phalanx of wing-finger 347
- Extent of five vertebrae of sacrum 57
-
-This species, which may be called _Pteranodon gracilis_, was about
-two-thirds the size of _P. velox_ Marsh. It probably measured about ten
-feet between the tips of the expanded wings.”
-
-In the December number of the same volume of the American Journal of
-Science, he described the genus as follows:
-
- “A second genus of American Pterodactyls is represented
- in the Yale Museum by several well preserved specimens.
- This genus is nearly related to _Pteranodon_, but may be
- readily distinguished from it by the scapular arch, in
- which the coracoid is not co-ossified with the scapula. The
- latter bone, moreover, has no articulation at its distal
- end, which is comparatively thin and expanded. The type of
- this species is _Pteranodon gracilis_ Marsh, which may now
- be called _Nyctosaurus gracilis_. It was a Pterodactyl of
- medium size, measuring about eight to ten feet between the
- tips of the expanded wings.”
-
-The specific description of this species rests solely upon the
-measurements; the other characters given are not only vague, but are
-also common to all the known species. The generic description, as it is
-seen, is based upon the structure of the coraco-scapula. It will also
-be observed that the characters are not drawn from the type specimen,
-as that did not include this part of the skeleton, according to the
-author’s statement. Of these two characters, the non-ossification
-of the coracoid and scapula is a somewhat doubtful one, as the same
-character may or may not occur in allied species, as, for example, in
-the species of _Rhamphorhyncus_ (_R. Muensteri_ Goldf.) described by
-the author himself. So incomplete and unsatisfactory are the characters
-thus given that Zittel, in his Handbuch, dismisses the genus with the
-brief remark, “noch unbeschrieben.”
-
-Nevertheless, from the peculiar form of the scapula, and from my
-recollection of the specimens upon which the genus was based, I
-believe I have determined with certainty an excellent specimen in the
-Snow Museum of Kansas University as a member of it, and here give a
-sufficiently complete description to place the genus on a more secure
-foundation.
-
-This specimen was collected by Professor E. E. Slosson, of Wyoming
-University, while a member of my party in western Kansas the past
-season. It was partly exposed upon a gently sloping surface of firm
-yellow chalk on the Smoky Hill river, in the vicinity of Monument
-Rocks. Originally, the nearly complete skeleton must have been
-preserved, but a number of the bones had been either wholly or
-partially washed away, in some cases leaving their imprint in the
-chalk. The bones uncovered, and now lying upon the chalk slab nearly
-in their natural relations, are a humerus, both radii and ulnae, a
-pteroid, the two carpals of one wrist, both wing metacarpals, a first
-and a last wing phalanx, both coraco-scapulae, the posterior part of
-the lower jaws, ilium, femur, sternum, numerous ribs and vertebrae. The
-two coraco-scapulae lie with their scapular ends nearly touching, and
-their coracoid ends separated by a space equivalent to the width of the
-sternal articulation. The two elements appear to have been imperfectly
-united and were probably not co-ossified. The inferior border of the
-coracoid, near the humeral articulation, has a greater expansion than
-is found in _Pteranodon_; its shaft is more rounded and less rugose,
-lacking especially the strong muscular markings upon the external
-surface. The articular surface does not appear to differ materially
-from that in _Pteranodon_. The scapula is of nearly the same length
-as the coracoid, but is much less stout. It is a thin, spatulate
-bone, slightly expanded at the distal extremity, where the margin is
-rounded, and without the characteristic oblique articular facet. It
-has no supra-glenoid expansion or process on the posterior proximal
-border, but has its margin nearly straight or gently concave from the
-articulation to its extremity. The space included between the bones
-of the two sides as they lie is a nearly regular, oval one, measuring
-ninety-five millimeters in its greater, forty-five in its lesser
-diameter.
-
-The sternum lies at a little distance from the coraco-scapulae. It is
-an extremely thin bone, with a stout anterior, styliform projection,
-at the base of which, on either side, looking upward and outward,
-is the articular, trochlea-like surface for the sternal end of the
-coracoid. The width between these articular surfaces measures fifteen
-millimeters; the length of the process in front of the articulations
-is twenty-five millimeters. Immediately posterior to the articular
-surfaces, the bone expands nearly at right angles to the longitudinal
-axis to a width of about sixty millimeters. The thin lateral margins
-are nearly parallel with the longitudinal axis, and show three shallow
-emarginations between the four costal articular projections. The
-hind angles are nearly rectangular. The bone, as preserved, is only
-shallowly concave, and shows no true keel, though a more pronounced
-median convexity towards the front doubtless subserved the function of
-a carina in part.
-
-The left humerus lies in position, and is especially characterized by
-its enormous deltoid crest (radial crest of Marsh), though otherwise
-slender. This crest is further removed from the head of the bone
-than is the case in species of _Pteranodon_. It is directed somewhat
-downward, and has its distal, gently convex, border about twenty-five
-millimeters in extent, while the width of the process midway between
-the extremity and the base measures but sixteen millimeters. The
-bicipital crest is also prominent. The bone is relatively shorter than
-in _Pteranodon_.
-
-The humerus, as will be seen from the above description, and from
-the measurements given below, is remarkably like the same bone in
-_Pteranodon nanus_, as described by Marsh (_l. c. supra_), and but
-a little larger. In _P. nanus_, however, the coracoid and scapula
-are said to be firmly co-ossified, and the scapula has of course a
-different structure.
-
-The skull has been, unfortunately, almost wholly washed away, a
-fragment of the cranial wall and the posterior part of the lower jaws
-alone remaining. It is impossible, hence, to say much concerning this
-part of the anatomy. The lower jaws show a different structure from
-that in _Pteranodon_. As they lie in their natural position, the width
-at the condyles is about twenty-four millimeters. The angular is less
-produced posterior to the articulation than in _Pteranodon_, indicating
-a less elongated and less powerful mandibular portion, an indication
-further borne out by the slenderness of the rami. The impression in
-the chalk shows the symphysis to begin ninety millimeters from the
-articulation. The width at this place could not have exceeded sixteen
-millimeters; and the entire length of the lower jaws could hardly
-have been more than one hundred and twenty-five millimeters. In the
-parts preserved, measuring seventy-five millimeters, there are no
-indications of teeth; yet it is not impossible that there may have been
-teeth in the anterior portion of the dentary, as in some species of
-_Pterodactylus_. I hardly think it probable, however.
-
-There are seven cervical vertebrae preserved, apparently the full
-complement, as in _Pteranodon_ and other members of the order. They
-differ in no especial respect from the corresponding vertebrae of
-_Pteranodon_, and, apparently, of _Pterodactylus_. The imperfectly
-anchylosed, possibly free, atlas shows three pieces, the odontoid
-process and the two slender lateral pieces. The lateral pieces are
-entirely free, with a thickened base and a slender, curved upper
-portion. The odontoid is gently concave in front, and seems to be
-imperfectly ossified with the axis; it occupies the lower part of the
-articulation, corresponding to the hypapophysis of the Pythonomorpha.
-The axis is the shortest of the remaining vertebrae, and has a well
-developed spine. The centrum is strongly convex behind, as are the
-remaining centra of the series. The following five vertebrae decrease
-gradually in length. The anterior ones have only a thin ridge or plate
-for the neural spine; the seventh, however, has a neurapophysis of
-some length. They are all, as is usually the case, somewhat distorted
-from pressure. The under side is flattened, apparently gently concave
-longitudinally, and with a lateral ridge terminating in an obtuse
-hypapophysis at each inferior hind angle.
-
-In his discussion of the Pterosauria, Zittel says concerning the
-vertebrae: “zwischen oberen Bogen und Centrum ist keine Sutur zu
-bemerken.” Handbuch, iii, p. 776. In this he is in error, so far as
-the American forms are concerned. It is usually the case in the Kansas
-specimens of both genera that the neural arch of the post-cervical
-vertebrae is wholly or in part detached from the centrum, showing a
-sutural, and not anchylosed union in life. The centra of twelve
-vertebrae are preserved, in the present specimen, from the region back
-of the neck; in only five of them are the neural arches in any way
-attached. Three of these are evidently anterior thoracic, judging from
-their structure and the position in which they lie. The shortest of
-them, to which was attached a very large rib, and which was lying in
-front of the scapulae, may represent the first thoracic vertebra (_a_).
-Its centrum is fully as wide as long, is flat on the under surface,
-and has a large, stout, horizontal parapophysis near the anterior end.
-Just above this process for the attachment of the head of the rib,
-and separated by a deep notch, is a much more elongated, horizontal
-diapophysis for the tuberculum. The cup of the centrum is shallowly
-concave; the transverse, shallowly U-shaped ball is only a little
-convex.
-
-Two other vertebrae (_b_), found close by the one just described, and
-possibly one or the other contiguous with it, differ remarkably in
-having no, or a rudimentary, parapophysial process, and in having the
-diapophyses much shorter. It is not impossible that a slight expansion
-at the lateral margins of the ball may represent small parapophyses.
-In _Pteranodon_ there are at least four vertebrae with dia- and
-parapophyses. In the other vertebrae from this region the diapophyses
-are yet shorter and the neural spine stouter and broader. The other
-centra preserved are all shaped somewhat like the half of a cylinder,
-and are a little longer than broad. They have no distinct cup or ball.
-In two of them there is a very long, recurved parapophysial process,
-as though formed by an anchylosed rib, on each side; they are probably
-lumbar vertebrae.
-
-Most of the ribs are very slender; a few are moderately thickened; one
-only is very stout; its measurements are given below.
-
- Length of lateral pieces of the atlas 7 millim.
- Diameter of lateral pieces at the base 3½
- Width of odontoid 4½
- Height of odontoid 3
- Length of axis 8
- Height of axis 15
- Length of third cervical vertebra 21
- Length of fourth cervical vertebra 20
- Length of fifth cervical vertebra 19
- Length of sixth cervical vertebra 18
- Length of seventh cervical vertebra 17
- Height of seventh cervical (about) 15
- Length of centrum, anterior thoracic vertebra (_a_) 6
- Width of ball (_a_) 8
- Expanse of parapophyses (_a_) 14
- Expanse of diapophyses (_a_) 26
- Width of neural canal (_a_) 3
- Length of centrum, anterior thoracic vertebra (_b_) 8
- Width of ball (_b_) 10
- Expanse of diapophyses (_b_) 17
- Height of neural spine (_b_) 20
- Width of neural spine (_b_) 5
- Length of rib (_c_) 45
- Width of shaft (_c_) 5
- Distance from center of capitulum to center
- of tubercle (_c_) 10
- Length of coracoid 50
- Antero-posterior diameter, sternal extremity 9
- Length of scapula 45
- Width of scapula at distal end 15
- Length of humerus 80
- Width through deltoid crest 24
- Least diameter of shaft of humerus 13
- Length of ulna 133
- Width of ulna at distal extremity 22
- Length of radius 130
- Width of radius distally 15
- Length of wing-finger metacarpal 220
- Width of same metacarpal at proximal end 20
- Diameter through condyles 15
- Transverse diameter of shaft above condyles 10
- Length of first phalanx, wing-finger 263
- Width of same phalanx at proximal end 24
- Width of same phalanx at distal end 15
- Width of sternum 67
- Length of rib borders 25
- Length of femur 75
- Diameter of head of femur 5
- Diameter of femur through condyles 12
- Length of pteroid bone 88
-
-The principal dimensions of this species can be got at with
-considerable certainty. Although two of the wing-phalanges and the
-bones of the foot are wanting, yet the relative proportions of those
-present agree so closely with those of the corresponding bones in
-_Pteranodon_, that there can be but little possibility of error in
-assuming the same proportions for the missing ones. The position of the
-ilium and femur, as also the ribs, show that they hold their natural
-relations to the pectoral arch. The tail, alone, can not be got at.
-
- Extreme expanse of wing-bones 2400 mm. 7 ft. 10 in.
- Expanse of wings in life, approximated 2000 6 6
- Length of head, estimated 150 6
- Length of neck 128 5½
- Length of trunk 165 6½
- Length of leg and foot, outstretched 275 11
-
-But one species has been described from the American Cretaceous smaller
-than the present one, _Pteranodon nanus_ Marsh, in which the expanse of
-wings is given as not more than three or four feet. In this estimate
-the author is certainly in error. The size of the humerus, as given,
-is rather more than three-fourths that of the present species, and the
-expanse, hence, must be nearly five feet in life, or six feet as the
-bones lie outstretched.
-
-As regards the specific determination of the present specimen, there
-must necessarily be some doubt until the species already named have
-been recognizably described. But three of the existing species can be
-taken into account, _N. gracilis_, _P. comptus_ and _P. nanus_. That it
-can not be the last, has already been shown. In size, it agrees well
-with _P. comptus_, but the other characters throw no light upon the
-identity.
-
-The measurements given of the type specimen of _N. gracilis_ show the
-size to be materially greater,—a character, however, of subordinate
-value—greater slenderness, and a relatively shorter first wing-phalanx.
-
-The relative lengths of wing-metacarpals, wing-phalanx and ulna in _N.
-gracilis_ and the present specimen may be expressed as follows:
-
- Length of wing-metacarpal 100 100
- Length of first wing-phalanx 115.6 119.5
- Length of ulna 62.3 60.4
-
-It will be seen that not a single character has yet been given to
-distinguish the genus from _Pterodactylus_, and it is not at all
-impossible that it may prove to be the same; its location among the
-_Pteranodontidae_ rests solely on the assumed absence of teeth, and
-that is a character yet wholly unknown.
-
-The material now in the museum permits a fuller discussion of the
-relations and characters of this group of reptiles than has been
-hitherto attempted. Originally, they were described as constituting a
-new order, a view still held by its author and no one else. Lydekker,
-in his Paleontology and Catalogue gives them a subordinal value; Zittel
-only a family value, though expressing doubt as to their subordinal
-rank.
-
-It seems very probable that the genus _Nyctodactylus_ has no teeth
-in the jaws; it agrees in _every other respect_ with the genus
-_Pterodactylus_, so far as known. If the genus has teeth it must be
-united with _Pterodactylus_. Now, in not a few species of this genus,
-the teeth are confined to the anterior end of the jaws, and their
-entire absence, unaccompanied by other structural differences, will
-hardly constitute an order, or even family.
-
-But, leaving aside _Nyctodactylus_, it is very much of a question
-whether the differences between _Pterodactylus_ and _Pteranodon_ are
-sufficient to locate them in different families, let alone different
-suborders.
-
-The two genera have the following in common: Tail short. Skull with
-more or less elongated, pointed jaws, and very small upper and lower
-temporal fossae. Narial opening large, confluent with the pre-orbital
-foramen. Cervical vertebrae elongated, with rudimentary spinous
-processes. Fore and hind extremities, quite alike.
-
-_Pteranodon_ differs from _Pterodactylus_, so far as that genus is
-known, in the united coracoscapulae and pubes, both of which characters
-are found in _Rhamphorhynchus_.
-
-The sole family characters remaining then, for _Pteranodon_, are,
-absence of teeth, a supra-occipital crest, and the articulation of
-the upper end of the scapula. Now it seems evident that to place
-the pteranodonts in a group equivalent to all the other pterosaurs
-is unwarranted, and any classification that will not show the more
-pronounced relationships with _Pterodactylus_ is faulty. I would,
-therefore, propose the following:
-
-Order Pterosauria.
-
- Family Pterodactylidae, subfamilies Pteranodontinae,
- Pterodactylinae.
- Family Rhamphorhynchidae.
- Family Ornithocheiridae.
-
-As regards the geographical distribution of the Pteranodonts, they
-have hitherto been recognized only from Kansas, but I am firmly of the
-opinion that they occur in Europe, and, if so, it is very probable that
-the name _Pteranodon_ must be eventually given up. In fact, a toothless
-form of Pterodactyl was described by Seeley as long ago as 1871,
-under the name of _Ornithostoma_. I cannot refer to his description
-at present, and can, therefore, give no opinion as to their identity.
-It seems certain that the peculiar form of the scapulae and their
-vertebral articulation[3] occur among some of the European forms, which
-would strengthen the belief that _Pteranodon_ is also an European genus.
-
-[3] The specimens in which I have seen the vertebral articulation show
-no co-ossification of the vertebrae: the facet for articulation being
-placed above the spines, and apparently formed by ossified ligaments.
-
-In view of the above, the practice of the American text-books in
-Geology in introducing generic names of characteristic fossils as names
-of the geological horizons whence they come, is very reprehensible, in
-my opinion. Even the late edition of Leconte’s Elements contains a long
-list of such names, the greater portion of which have been relegated to
-the limbo of synonymy by paleontologists. It is greatly to be desired
-that the name “Pteranodon Beds” shall not become established, so long
-as there is the least doubt of the validity of the name itself.
-
-
-
-
-KANSAS MOSASAURS.
-
-
-BY S. W. WILLISTON AND E. C. CASE.
-
-PART I, CLIDASTES, WITH PLATES II-VI.
-
-The group of extinct Cretaceous reptiles known as the Mosasaurs or
-Pythonomorpha was defined by Cope, “to whom Science is so largely
-indebted for its present knowledge of this interesting order of
-reptiles” (Marsh), in 1869.[4] Although some of the characters assigned
-by him to the order have since been shown to be inapplicable, and
-the group to have less value, yet his name, Pythonomorpha, has been
-generally retained. Lydekker and Zittel have assigned to the group a
-subordinal value, as has also Marsh, though under a different name.
-Owen rejected it entirely, and Baur, more recently,[5] has united it
-with the Varanidae to form a super-family, as follows:
-
- Suborder Platynota.
- Super-family Varanoidea.
- Families Mosasauridae, Varanidae.
- Super-family Helodermatoidea.
- Family Helodermatidae.
-
-The group, whatever may be its rank or position, includes, so far, the
-following genera: _Mosasaurus_ Conyb., _Liodon_ Owen, _Platecarpus_
-Cope, _Clidastes_ Cope, _Baptosaurus_ Marsh, _Sironectes_ Cope,
-_Plioplatecarpus_ Dollo and _Hainosaurus_ Dollo. _Pterycollasaurus_
-Dollo, founded upon _Mosasaurus maximilianus_ Goldf., is omitted
-as doubtful. All of these genera, save _Plioplatecarpus_ and
-_Hainosaurus_, have been recorded from North America, _Clidastes_,
-_Baptosaurus_ and _Sironectes_ being peculiar to this country. Of these
-latter three genera, however, _Clidastes_ alone is well known; but this
-genus is suspected by Lydekker of being the same as the imperfectly
-known European _Geosaurus_ Cuvier. Thus it seems that the genera, or
-at least the most of them, have a wide distribution; _Platecarpus_, in
-fact, is said to occur in New Zealand.
-
-[4] Proc. Bost. Soc. Nat. Hist., p. 253.
-
-[5] Science, xvi, p. 262, Nov. 7, 1890.
-
-In America, members of the group have been discovered in the Cretaceous
-deposits of New Jersey, Alabama, North Carolina, the upper Missouri
-region, Nebraska, Kansas and New Mexico. Probably nineteen-twentieths
-of all the known specimens, however, have been obtained in western
-Kansas. The material now in the University Museum, all from Kansas,
-comprises several hundred specimens of these animals, including,
-probably, the best ones known. It is upon this material that the
-following preliminary studies are chiefly based.
-
-The genus _Clidastes_, as first described by Cope, was based upon
-two dorsal vertebrae of _C. iguanavus_, the type species, from New
-Jersey. Shortly afterward, however, he gave a full and careful generic
-description, as derived from an unusually good specimen of an allied
-species, _C. propython_, from Alabama. Only a little later, Marsh
-described a genus, which he called _Edestosaurus_, from Kansas, but
-without giving any real, distinctive differences from _Clidastes_,
-following the very reprehensible practice of naming supposed new forms
-in the hopes that future distinctive characters might be found. The
-genus _Edestosaurus_ has been rejected by nearly all save the authors
-of the American text-books in Geology. It seems hardly necessary to
-point out the identity. The only distinctive character the author
-gave for his genus was the insertion of the pterygoid teeth, and even
-this character he modified later—“Palatine (sic) teeth more or less
-pleurodont.”[6]
-
-[6] Amer. Journ. Sci. iii, June 1872.
-
-This character, even were it real, is of very slight value; indeed it
-cannot be used to distinguish the species even.
-
-_Clidastes_ is, without doubt, one of the most highly specialized
-genera in the group, and, what is very interesting, is one of the
-latest. It occurs in Kansas in the uppermost part of the Niobrara beds,
-in the horizon so markedly characterized by the toothed birds. Both
-_Platecarpus_ and _Liodon_ occur, though in diminished numbers, almost
-to the very lowest portion, but _Clidastes_ has never been found except
-towards the top. From measurements made the past season, the thickness
-of the beds in which these saurians occur cannot be less than six
-hundred feet.
-
-The following species have been found in Kansas: none of them are known
-to occur elsewhere.
-
-
-MOSASAURIDAE.
-
- _Mosasauridae_ Conybeare, in Cuvier, Ossem. Foss., 2nd ed.,
- p. 338, 1824.
-
- _Clidastidae_ Cope, Extinct Batr. Rept. and Aves of N.
- Amer., Trans. Amer. Phil. Soc. xiv, p. 50, 1870.
-
- _Edestosauridae_ Marsh, Amer. Journ. Sci. xxi, p. 59, July
- 1878.
-
-
-CLIDASTES.
-
- ? _Geosaurus_ Cuvier, Ossem. Foss. 2nd ed., 328, 1824,
- (_fide_ Lydekker.)
-
- _Clidastes_ Cope, Proc. Acad. Nat. Sci. Phil. 1868, p. 233;
- Ext. Batr. etc., p. 21, 1870.
-
- _Edestosaurus_ Marsh, Amer. Journ. Sci. i, p. 417, June,
- 1871.
-
-=C. cineriarum.=
-
- _Clidastes cineriarum_ Cope, Proc. Amer. Phil. Soc., 1870,
- p. 583; Cret. Vert. etc. pp. 137, 266, pl. xxi, ff.
- 14-17; Bullet. U. S. Geol. Surv. Hayden, iii, p. 583.
-
-=C. dispar.=
-
- _Edestosaurus dispar_ Marsh, op. cit. i, p. 447, June 1871;
- iii, pl. xi., June, 1872.
-
-=C. velox.=
-
- _Edestosaurus velox_ Marsh, Amer. Journ. Sci. i.
- p. 450, June, 1871.
-
- _Edestosaurus pumilus_ Marsh, ibid. p. 452.
-
- ? _Clidastes affinis_ Leidy, Proc. Acad. Nat. Sci., 1870,
- p. 4; Rep. U. S. Geol. Surv., Hayden, vol. i, p.
- 283, 1873.
-
- ? _Edestosaurus dispar_ Marsh, op. cit. xix, pl. i, f. 1,
- Jan., 1880.
-
-=C. Wymani.=
-
- _Clidastes Wymani_ Marsh, Amer. Journ. Sci. i, p. 451,
- June, 1871; iii, p. 202, April, 1872.
-
- _Edestosaurus Wymani_ Marsh, op. cit. iii, p. 464, June,
- 1872.
-
-=C. tortor.=
-
- _Edestosaurus tortor_ Cope, Proc. Amer. Phil. Soc. Dec.,
- 1871; Marsh, op. cit. iii, p. 464, June, 1872.
-
- _Clidastes tortor_ Cope, Cret. Vert. Rep. U. S. Geol.
- Surv., Hayden, vol. ii, pp. 48, 131, 265, pls. iv, f.
- i; xiv, f. i; xvi, ff. 2, 3; xvii, f. 1; xix, ff. 1-10;
- xxxvi, f. 3; xxxvii, f. 2; Bullet. U. S. Geol. Surv.
- Hayden, vol. iii, p. 583.
-
-=C. stenops.=
-
- _Edestosaurus stenops_ Cope, Proc. Amer. Phil. Soc. p. 330,
- 1871: Marsh, Amer. Journ. Sci. iii, p. 464, June, 1872.
-
- _Clidastes stenops_ Cope, Cret. Vert. etc. pp. 133, 266,
- pls. xiv, ff. 4, 5; xvii, f. 7, 8; xviii, ff. 1-5;
- xxxvi, f. 4; xxxvii, f. 3; xxxviii, f. 3.
-
-=C. rex.=
-
-_Edestosaurus rex_ Marsh, op. cit. iii, p. 462, pl. xxii, f. 1, June,
-1872.
-
-=C. planifrons.=
-
- _Clidastes planifrons_ Cope, Bullet. U. S. Geol. Surv. No.
- 2, p. 31, 1874; Cret. Vert. etc. pp. 135, 265, pls.
- xxii, xxiii.
-
-=C. Westii.=
-
-_C. Westii_ Williston, n. sp. infra.
-
-
-CLIDASTES VELOX.
-
-A remarkably complete specimen, referred with considerable certainty
-to this species, was obtained by ourselves in western Kansas, (Butte
-Creek) in the summer of 1891. A brief preliminary description of the
-specimen was given by the senior author in Science, December 8, 1891.
-A more complete description is here given, which, it is believed, will
-be of service. The specimen is an unusually perfect one, being very
-nearly complete, and, as now mounted, shows the bones nearly all in the
-position in which they were found. The vertebral column is continuous,
-except in one place, where the tail had been bent up over the back; and
-complete, save at the very tip of the tail. The skull is complete, or
-very nearly complete, and has been restored nearly to the condition in
-life. Figures have been made of this portion of the skeleton, and will
-be given in a future communication. At present, it may be mentioned
-that the lacrymals are small, roughly irregular bones, and pointed at
-either extremity. There are no indications of transverse bones, as
-there are none in any other skull in the collection.
-
-
-Cervical vertebrae.
-
-ATLAS. The intercentrum is a small bone with three sides of
-nearly equal extent. The two upper, articular surfaces are gently
-concave, and meet in a rounded margin; the inferior surface is convex,
-both antero-posteriorly and transversely, with a roughened prominence
-in the middle. The lateral pieces have indistinctly separated facets
-for articulation with the odontoid, the intercentrum and the occipital
-condyle. The rather short, flattened lamina extends upward, backward
-and inward, approaching, but not reaching its fellow of the opposite
-side; it is somewhat dilated distally. Directed outwards and forwards,
-there is a stout styliform process.
-
-AXIS. The neural spine of the axis is elongated
-antero-posteriorly. It is thin on the anterior portion, but stouter
-and longer at the posterior part. The large, stout odontoid process is
-united suturally, as is also the well-developed atlantar hypapophysis,
-which forms the anterior, inferior portion of the bone. The diapophyses
-are the smallest of the costiferous series, with only a small articular
-facet for the rib. The ball is strongly and evenly convex, with its
-greater diameter transversely. The hypapophysis is the largest of the
-series; it is suturally united with the stout, exogenous process of the
-centrum, and projects downward and backward; its distal extremity is
-roughened for ligamentous attachments.
-
-The third cervical vertebra shows a well-developed zygosphenal
-articulation, and stout articular processes. The transverse process is
-small, only a little larger than that of the axis, though, unlike that,
-it is strengthened by a ridge continued from the anterior zygapophyses.
-The hypapophysis is smaller than that of the axis, but, like that,
-is directed downward and backward. The spine may be distinguished
-from that of any other vertebra by its stout, trihedral shape; it is
-directed rather more obliquely backward than in the following vertebrae.
-
-The fourth cervical vertebra differs from the third in having stouter
-transverse processes; in the hypapophysis being directed more nearly
-downward, and in its smaller size; and in the spine being flattened
-antero-posteriorly toward the base.
-
-The fifth cervical vertebra differs from the fourth in the broader
-spine, in the stouter transverse processes, and the smaller
-hypapophysis.
-
-In the sixth cervical vertebra, the hypapophysis is reduced to a small
-ossification, scarcely longer than broad, directed downward. The spine
-has reached nearly the full width of those of the following vertebrae,
-though somewhat stouter above. The transverse processes are yet stouter.
-
-In the seventh, or last, cervical vertebra the hypapophysis is
-wanting, or very rudimentary. The under part of the centrum shows a
-rounded ridge or carina, with a slight projection corresponding to the
-hypapophysis.
-
-MEASUREMENTS OF THE CERVICAL VERTEBRAE.
-
- 1. Antero-posterior diameter of intercentrum of atlas 14 millim.
- Transverse diameter of intercentrum 25
- Antero-posterior diameter of lateral piece 20
- Vertical extent of articular surface 17
- Extent of lateral piece 35
- Width of lamina above 16
- 2. Length of axis 43
- Transverse diameter of ball 18
- Vertical diameter of ball 17
- Expanse of transverse processes 28
- Elevation of spine above floor of neural canal 34
- Antero-posterior extent of spine 50
- 3. Length of third cervical vertebra 37
- Height of spine above floor of neural canal 36
- Depth of hypapophysis below floor of neural canal 34
- 4. Length of fourth cervical vertebra 37
- Height of spine above floor of neural canal 39
- Depth of hypapophysis below floor of neural canal 35
- 5. Length of fifth cervical vertebra 37
- Height of spine above floor of neural canal 42
- Depth of hypapophysis below floor of neural canal 33
- Transverse diameter of ball 17
- Vertical diameter of ball 18
- 6. Length of sixth cervical vertebra 37
- Height of spine above floor of neural canal 42
- Depth of hypapophysis below floor of neural canal 30
- Width of spinous process 26
- 7. Length of seventh cervical vertebra 37
- Height of spine above floor of neural canal 46
- Transverse diameter of ball 19
- Vertical diameter of ball 20
- Width of spinous process 27
-
-
-Dorsal vertebrae.
-
-There are thirty-five vertebrae between the cervicals and the first
-non-rib-bearing vertebra, to which the pelvis was, evidently, attached.
-The distinction between the cervicals and thoracics cannot be made from
-any characters they possess, as the seventh vertebra does not bear a
-distinct hypapophysis. Neither can it be said with certainty from this
-specimen which is the first thoracic vertebra, as the cervical ribs
-had, unfortunately, been displaced in the collection and preparation
-of the specimen. In another specimen, referred to _C. pumilus_, and
-which, as will be seen later, cannot be specifically distinguished
-from the present species, short cervical ribs were found attached to
-six vertebrae posterior to the atlas. That the eighth vertebra is a
-thoracic one is shown by the relation of the ribs in this specimen.
-Posteriorly there is no distinction, also, between the true thoracic
-vertebrae and those of the lumbar region. All the vertebrae anterior to
-the pelvis bear ribs, and will all be considered as dorsal vertebrae,
-the true thoracic vertebrae being restricted to those of which the ribs
-are elongated, and, probably, connected with the sternum.
-
-In the anterior vertebrae of the series, the centra are subcarinate
-below, the obtuse, rounded ridge becoming less and less apparent
-until no indications of the keel can be seen, before the middle
-of the series. The transverse processes are stoutest, with a more
-elongated, sigmoid articular surface, with little or no constriction,
-and projecting only slightly beyond the stout articulating processes,
-in the anterior vertebrae. In the tenth or eleventh, the articular
-surface has become markedly smaller, more vertical, and less sigmoid in
-outline. Thence to the last, the articular surface for the ribs remains
-nearly the same. The process itself, however, becomes gradually more
-prominent and constricted, as the zygapophyses becomes smaller. The
-spinous processes increase slightly in length and breadth, and are only
-slightly oblique throughout. In length, the centra increase gradually.
-The vertical diameter of the ball increases gradually, while the
-transverse diameter remains more nearly the same.
-
-MEASUREMENTS OF THE DORSAL VERTEBRAE.
-
- 1. Length of centrum to rim of ball 38 millim.
- Transverse diameter of ball 20
- Vertical diameter of ball 19
- Height of spine above floor of neural canal 48
- Extent of articular surface of transverse process 30
- Width of spine 28
- 4. Length of centrum to rim of ball 41
- Transverse diameter of ball 20
- Vertical diameter of ball 20
- Height of spine above floor of neural canal 48
- 11. Length of centrum to rim of ball 41
- Vertical diameter of ball 22
- Extent of articular surface of transverse process 16
- Width of spine 32
- 15. Length of centrum to rim of ball 41
- Transverse diameter of ball 21
- Vertical diameter of ball 24
- 20. Length of centrum to rim of ball 42
- Vertical diameter of ball 25
- Height of spine above floor of neural canal 58
- 24. Length to rim of ball 41
- Transverse diameter of ball 22
- Vertical diameter of ball 23
- Height of spine 49
- 28. Length to rim of ball 40
- Vertical diameter of ball 24
- Transverse diameter of ball 23
- Height of spine 54
- 32. Length to rim of ball 38
- Vertical diameter of ball 25
- Transverse diameter of ball 24
- 35. Length to rim of ball 37
-
-
-Caudal vertebrae.
-
-Immediately following the thirty-fifth rib-bearing vertebra there is
-an abrupt change, the tubercular process for the rib giving place to
-an elongated transverse process. From the position of the pelvis, it
-is evident that the ilia were attached to the first pair of these.
-Precisely this relation of pelvis to the vertebrae is found in such
-lizards as the Monitor and Iguana, and it is probable that such is the
-relation in all the Pythonomorpha. It will thus be seen that there
-are no distinctively lumbar vertebrae, if by such are meant free,
-non-costiferous, pre-sacral vertebrae. The vertebrae of these animals
-that have been so designated by writers are in reality basal caudal.
-A distinctive term for them—those with transverse, non-costiferous
-processes and without chevrons—is needed, and we propose,
-provisionally, the term _pygial_. There are seven in the present
-series, all characterized by elongated transverse processes, and not
-differing much from each other. The vertebrae lie in the matrix with
-the ventral aspect uppermost, concealing the spine and upper parts.
-The under surface is somewhat flattened, and, as in the preceding
-vertebrae, is gently concave antero-posteriorly. The transverse
-processes are elongate, stout towards the base, apparently all of
-nearly equal length, and directed gently backwards and downwards. In
-the anterior vertebrae the processes spring from near the front part:
-as the centra become shorter they arise from near the middle. In the
-last one of the series there are minute indications of chevrons.
-
-MEASUREMENTS OF THE PYGIAL CAUDAL VERTEBRAE.
-
- 1. Length to rim of ball 36 millim.
- Width of ball 25
- Expanse of transverse processes 130
- Width of transverse process near base 17
- 2. Length to rim of ball 33
- 3. Length to rim of ball 31
- 4. Length to rim of ball 29
- 5. Length to rim of ball 28
- 6. Length to rim of ball 27
- Expanse of transverse processes 130
- Width of ball 24
- 7. Length to rim of ball 27
-
-The centra of those caudal vertebrae which have chevrons do not differ
-much in shape. They become less constricted, and, back of the middle of
-the series, are smoothly cylindrical in shape. The transverse processes
-decrease gradually in length, disappearing entirely in the twenty-fifth
-or twenty-sixth. The spinous processes are more or less incompletely
-preserved in the anterior vertebrae. They increase only gradually in
-length for the first twenty of the series, and are markedly oblique,
-with the posterior border stout, and the anterior border alate. With
-the twenty-sixth they begin to increase more rapidly in length, and
-have become more nearly vertical in position, and are thinner at each
-margin. In the thirty-fifth or thirty-sixth they attain their greatest
-length, and are here directed slightly forwards. Thence to the end of
-the tail, the length decreases gradually, and, in position, they are
-directed more and more obliquely backward. The chevrons are strongly
-oblique throughout the series and are firmly co-ossified with the
-centrum.
-
-The tail, it is thus seen, has a broad, vertical, fin-like extremity,
-which, doubtless, aided much in the propulsion of the animal through
-the water.
-
-There are sixty-seven vertebrae with chevrons present in the specimen,
-all continuous, except in one place. The last one is less than
-one-fourth of an inch in diameter, and shows that there had been yet
-another, possibly several more. Toward the base of the series the tail
-has been bent forwards over the back, and it is possible that, where
-the break occurs, there has been a vertebra lost. The measurements,
-however, do not seem to indicate any loss. The entire series of
-vertebrae was not less than sixty-eight, and probably not more than
-seventy, making for the entire vertebral series one hundred and
-seventeen to twenty.
-
-MEASUREMENTS OF THE CHEVRON-BEARING CAUDAL VERTEBRAE.
-
- 1. Length to rim of ball 26 millim.
- 5. Length to rim of ball 24
- Vertical diameter of ball 21
- Transverse diameter of ball 24
- 10. Length to rim of ball 24
- 15. Length to rim of ball 24
- Height of spine above floor of neural canal 40
- Length of chevron 45
- 20. Length to rim of ball 23
- Vertical diameter of ball 21
- Transverse diameter of ball 22
- 25. Length to rim of ball 20
- Height of spine 44
- Width of spine at base 19
- Width of spine at distal end 10
- Length of chevron 85
- Altitude of tail 112
- 30. Length to rim of ball 18
- Vertical diameter of ball 17
- Height of spine 57
- Width of spine at base 19
- Width of spine at distal end 9
- Length of chevron 99
- Altitude of tail 20
- 35. Length to rim of ball 16
- Vertical diameter of ball 16
- Height of spine 61
- Length of chevron 97
- Altitude of tail 122
- 40. Length to rim of ball 15
- Vertical diameter of ball 15
- Height of spine 54
- Length of chevron 70
- Altitude of tail 110
- 45. Length to rim of ball 14
- Vertical diameter of ball 14
- Height of spine 40
- Length of spine 50
- Length of chevron 58
- Altitude of tail 93
- 50. Length to rim of ball 13
- Length of spine 43
- Length of chevron 55
- Altitude of tail 73
- 55. Length to rim of ball 12
- Length of spine 38
- Length of chevron 42
- Altitude of tail 63
- 60. Length to rim of ball 9
- Length of spine 46
- Length of chevron 25
- Altitude of tail 50
- 66. Length to rim of ball 7
- Length of chevron 10
- Altitude of tail 20
- 67. Length 6
-
-
-Ribs.
-
-As has already been stated, the cervical ribs were displaced in the
-present specimen, and measurements of them cannot be given. In a
-smaller specimen, specifically indistinguishable from the present one,
-the entire cervical series is preserved with the ribs attached. The
-first, that articulating with the axis, is very short. The following
-ones are stouter, but increase only moderately in length, that of the
-sixth measuring only thirty-five millimeters, while that of the seventh
-is but a little longer. In the specimen of _C. velox_ described,
-there is a detached cervical rib sixty-five millimeters in length; it
-probably belongs with the seventh.
-
-The thoracic ribs are simple, somewhat flattened rods, moderately
-expanded at the proximal end. The greatest convexity is shown about the
-middle of the series, where the versedsine of the curvature is forty
-millimeters, the chord being one hundred and sixty. Posteriorly, the
-short ribs are only gently curved.
-
-Lying by the side of the vertebral column, and between the ribs,
-as they have been pressed down, are a number of flattened, soft,
-punctulate bones, which are evidently the costal cartilages.
-Posteriorly four rows of them are seen, lying closely side by side,
-some of them eight or ten inches in length. The sternum, composed
-of the same material, has been so crushed and crumpled that its
-shape cannot be made out. The whole structure here, whether of ribs,
-cartilages or sternum, reminds one very strongly of such lizards as the
-Iguana or Monitor. There is no indication, however, in any specimen, of
-an episternum.
-
-MEASUREMENTS OF RIBS.
-
- Length, first thoracic rib, (chord) 200 millim.
- Length, eleventh thoracic rib, (chord) 145
- Length, thirteenth dorsal rib 68
- Length, eighteenth dorsal rib 64
- Length, thirty-fourth dorsal rib 52
-
-The lengths of the different regions, as they lie in their natural
-relations, are as follows:
-
- Skull 0.420 meters.
- Neck 0.225
- Trunk 1.360
- Tail 1.460
- Total 3.465 11 ft. 7 in.
-
-The measurements of an excellent specimen of _C. tortor_ are as follows:
-
- Skull 0.630 meters.
- Neck 0.360
- Trunk, (thirty-three vertebrae preserved) 2.370
-
-A very complete specimen of a _Liodon_ in the Museum, in which the
-_complete_ vertebral column is present, numbering one hundred and
-seventeen vertebrae, gives the following measurements. The skull is
-complete, save the most anterior portion.
-
- Skull (approximated within narrow limits) 0.700 meters.
- Neck 0.430
- Trunk 1.760
- Tail 3.420
- Total 6.310 20 ft. 8 in.
-
-The vertebral series in this specimen is composed of seven cervicals,
-twenty-three dorsals, seven pygials, and eighty chevron-caudals.
-
-The relative proportions of the different regions in the two genera,
-as shown by the two specimens of _Clidastes_ and _Liodon_, may be
-represented as follows. The first column is for _Clidastes_.
-
- Skull 12.1 11.1
- Neck 6.5 6.8
- Trunk 39.2 28.0
- Tail 42.3 54.1
-
-
-Limbs.
-
-The figures in plates II and III will give a sufficiently good idea
-of the limbs in this specimen. They are figured as they were lying,
-showing the outer sides of the coracoid, scapula and pelvic bones, and
-the palmar or plantar surface of the remaining bones.
-
-
-Coracoid.
-
-It will be observed in plates II and IV that there are two very
-different types of coracoid, one with a deep emargination, the other
-without the slightest indication of such. The same non-emarginate
-form occurs in _C. tortor_, as specimens in our Museum show, in _C.
-propython_ Cope (Ext. Batr. etc. pl. xii, f. 16,) and in _C. dispar_,
-as figured by Marsh[7], and as stated by him in the same paper
-(“There is certainly no emargination in the coracoid of _Clidastes_,
-_Edestosaurus_ and _Baptosaurus_, as specimens in the Yale Museum
-conclusively prove.”) It is true that Marsh in a later paper[8] figured
-a specimen with emarginate coracoid under the name of _Edestosaurus
-dispar_, but it is certain that his identification of his own species
-was wrong, as will be seen by comparing his figures. From the senior
-author’s memory of the specimen with the emarginate coracoid figured,
-and from the figure itself he feels confident that the second specimen
-is _C. velox_.
-
-[7] Amer. Journ. Sci. iii, pl. xi, f. 1, June, 1872.
-
-[8] Amer. Journ. Sci. xix, pl. i, fig. 1, Jan., 1880.
-
-That the emargination was overlooked by the author seems strange, as
-in the same paper in which this figure is given occurs the description
-of _Holosaurus, founded upon that very character_. If the emargination
-is sufficiently important to base a genus in the one case, then it
-should be in the other, and the character could not be applied to
-_Edestosaurus_, based upon characters which it hardly seems possible
-that the author himself could seriously consider, for _E. dispar_ was
-the type of _Edestosaurus_.
-
-It will be observed, further, that the figured coracoids differ very
-materially in size, those with the emargination pertaining to a small
-species, while _C. dispar_ is one of the largest. In our Museum there
-are three specimens with the emarginate coracoid, all of them small or
-very small, the described specimen of _C. velox_ being the largest.
-
-The point of chief interest in this relation is the value that can be
-given to this character. Is it individual, specific or generic? Marsh
-has called it generic, but we think an examination of the two very
-complete specimens of _C. tortor_ and _C. velox_ in our Museum will
-convince any unprejudiced student that he is in error.
-
-A comparison of the figures herewith given of the paddles will show
-their great resemblance, and these two forms of paddles have been
-figured because the species are the most unlike of any that we know in
-the genus. As all the small specimens seem to possess this character,
-and as they cannot be called immature specimens, we believe the
-character is a specific one. As Marsh says, typically both _Clidastes_
-and _Edestosaurus_ have a non-emarginate coracoid, so that neither name
-could apply to the emarginate form, were it generically distinct.
-
-Our Museum also contains both forms of the coracoid pertaining to the
-genus _Platecarpus_, of which _Holosaurus_ is a synonym.
-
-While studying the specimen above described, a striking similarity was
-observed to several other specimens already determined with confidence
-as _C. pumilus_ Marsh. A more careful comparison failed to bring out
-any real differences beyond size, and even this was shown to be very
-inconstant.
-
-The following comparison of the descriptions given by Marsh will be of
-interest.
-
- _C. pumilus._
-
- TEETH. Nearly round at base somewhat curved
- and with smooth enamel.
-
- QUADRATE. The rugose knob near the distal
- end of the quadrate is similar to that in _C.
- Wymani_ (just below the posterior superior process
- is a prominent rugose knob with a deep pit under
- it), but has no articular pit under it. The hook
- is comparatively short and has a free compressed
- extremity. The articular margin is not deflected
- toward the meatus.
-
- CERVICAL VERTEBRAE. Articular face nearly
- vertical, and having a broad transverse outline with
- faint superior emargination. The hypapophysis stout
- and transversely triangular.
-
- _C. velox._
-
- Premaxillary and maxillary teeth smooth and
- subcompressed.
-
- The great ala less curved than in _E. dispar_, concave
- transversely on both surfaces. The alar process has
- its articular process very narrow in its extension
- over the great ala. No notch in posterior margin of
- external angle. On the ridge below the angle and
- nearly opposite the meatal pit is a strong rugosity
- which is rudimentary or wanting in _C. dispar_. The
- posterior margin of the hook is only a narrow tongue
- projecting towards the meatal pit, instead of a broad
- articular surface.
-
- Articular face transverse.
-
-The description, otherwise, shows no discrepancies of importance. The
-chief difference given by the author is the size, and this character
-we think our specimens show to be of little specific value. “It
-is a question of some importance how far difference in size among
-the Mosasauroids may be a test of difference in species. Among the
-numerous remains of these animals which have been discovered I have
-never yet observed any which presented any evidence relative to age.
-* * * In this view of the case, some of the many described species of
-Mosasauroids may have been founded on different sizes of the same.”[9]
-
-[9] Leidy, Rep. U. S. Geol. Surv. Hayden, vol. i, p. 284.
-
-The length of the cervical vertebrae in the specimen above described
-is thirty-seven or thirty-eight millimeters. The cervical vertebrae in
-two specimens referred to _C. pumilus_ have lengths respectively of
-twenty-two and thirty millimeters. In the type specimen of _C. velox_
-they must have had a length of at least forty-two millimeters.
-
-It thus appears that, between the smallest specimen, which, in life,
-could have hardly exceeded eight feet in length, our specimens,
-indistinguishable anatomically, represent forms of ten and twelve feet,
-while the type itself was about fifteen feet in length.
-
-Of the material originally referred to _C. pumilus_, there are in the
-collection five or more specimens, which, altogether, furnish nearly
-every part of the skeleton. They present no tangible differences from
-the skeleton of _C. velox_ described above. There can be, hence, little
-or no doubt but that the name _C. pumilus_ is a synonym.
-
-It is hardly possible to say with certainty that _C. affinis_ Leidy
-is or is not the same as _C. velox_, but, so far as the description
-goes, we can find few differences. The type is of about the same size
-as the type of _C. velox_, and the figures agree well with the bones
-of the skeleton described. Although the description was not published
-till 1873, the author makes no mention of the species of Marsh’s. Leidy
-describes the back teeth as having the enamel strongly striated, with
-the surface presenting evidences of subdivision into narrow planes. In
-this respect, only, it disagrees with the specimen.
-
-_Plioplatecarpus_ Dollo is described by its author as having a sacrum
-of two conjoined vertebrae,[10] by reason of which it is placed in
-a separate family from the rest of the _Pythonomorpha_. It may be
-presumptuous to express a doubt of the genuineness of the sacrum, and
-yet, save from the fact that the author found two specimens quite
-alike, one might doubt it strongly. It is not very rare that two, or
-even three vertebrae are found united from injury in these animals,
-and such would readily account for the consolidation as figured and
-described by Dollo, except for the coincidence of the second specimen.
-A stronger reason for doubt is the statement that the consolidated
-vertebrae belong to the posterior “lumbar” region, and that the last
-vertebrae had small tubercles indicative of chevrons. In the reptiles
-which we have examined, the chevrons do not begin immediately behind
-the pelvis, but are separated by a longer or shorter region in which
-the vertebrae bear elongated diapophyses alone. If the conjoined
-vertebrae figured by Dollo are in reality sacral, it would appear
-that the animal is an exception to _Clidastes_ and such lizards as we
-have examined. Furthermore, the pelvis must have been of a different
-structure from that in the Kansas genera of the Pythonomorpha, for, in
-these, it is evident that the ilium had an oblique position, and could
-have been attached to but a single diapophysis.
-
-[10] Bull. Su. Mus. Roy. S. Hist. Nat. d. Belg. i, p. 8, 1882.
-
-
-CLIDASTES WESTII, N. SP.
-
-A specimen of much interest in the University collection differs so
-markedly from the other forms represented by specimens, as also from
-the descriptions of the known species, that we are constrained to
-regard it as new. It was collected by Mr. C. H. Sternberg from the
-uppermost of the Niobrara beds, in the vicinity of the old town of
-Sheridan. The character of the associated invertebrate fossils seems
-to indicate a different geological horizon, either the Fox Hills
-group, or transition beds to that group. The specimen consists of a
-complete lower jaw, quadrate, portions of the skull, the larger part
-of the vertebral column, and the incomplete hind and fore paddles. The
-vertebrae preserved are in two series, the one, numbering thirty-three,
-continuous with the skull; the other, sixty-three in number, all
-chevron caudals. The terminal caudals preserved indicate that there
-were several more in life, perhaps five or ten; the first of the series
-was evidently among the first of those which bore chevrons. Altogether
-the tail may have had seventy-five chevron caudals. The lengths of
-the two series are respectively seventy-one and seventy-two inches.
-Assuming that there was the same number of precaudal vertebrae as in
-_C. velox_, the entire vertebral column would have measured in life
-fifteen feet and four inches. The lower jaw shows the skull to have
-been very nearly twenty-four inches in length, making, for the animal
-when alive, a length of seventeen and one-half feet. This is one of
-the largest species, and it is interesting to observe that the real
-size here, as usually elsewhere among fossil vertebrates, is less than
-supposed. It is doubtful whether there is a _Clidastes_ known that
-exceeded twenty feet in length.
-
-While the skeleton was only about one half longer than the specimen
-of _C. velox_ described in the foregoing pages, or of about the same
-length as a very complete specimen of _C. tortor_ in the museum, the
-proportions of the animal were very much stouter. The figures given in
-plate VI of the twenty-fifth, or eighteenth dorsal, vertebra will show
-the relations between length and breadth: it is upon these remarkably
-stout proportions, and the shape of the articular faces, as indicated
-by the figures and by the measurements appended, that the species is
-chiefly based. The articular surfaces of the basal caudal vertebrae are
-remarkably triangular in shape, with the angles rounded, and the sides
-of nearly equal length. This triangular shape is persistent for the
-first twenty of the series as they are preserved. The paddles, as shown
-in plates IV and V, show much stouter proportions than in either _C.
-velox_ or _C. tortor_.
-
-The species comes nearest to _C. stenops_ Cope, but it seems hardly the
-same. It is, also, evidently allied to _C. dispar_ Marsh. From these
-and other described species, the following, extracted from the original
-descriptions, will serve to show the differences, in comparison with
-the specimen of _C. Westii_.
-
-=C. dispar.=
-
-The articular faces in the cervicals are a broad transverse oval,
-faintly emarginated above for the neural canal. In the dorsals and
-lumbars the cup continues transverse, and the emargination is deeper,
-but in the anterior caudals the outline becomes a vertical oval. There
-appears to have been thirteen mandibular teeth.
-
- Length of axis with odontoid process 32 lines 100
- Width between diapophyses 26.8 103
- Length from edge of cup to end of ball in
- eleventh vertebra 25 100
- Width of ball 14 56
- Depth of ball 12 43
-
-=C. Wymani.=
-
-In the cervical vertebrae, the outline of the articular faces is
-transversely cordate. The centra of the anterior dorsals are elongate,
-and much constricted behind the diapophyses. In the anterior caudals,
-the articular faces are a broad vertical oval.
-
- Length of axis with odontoid process 19 lines 100
- Width between diapophyses 17 89.4
- Width of ball 8 42.1
- Depth of ball 7 36.7
- Length of sixth cervical, without ball 13 100
- Width of cup 9 69.1
-
-=C. rex.=
-
-The cervical vertebrae have very broad, transversely oval faces, with
-indications of emargination. The dorsals are elongated, with transverse
-faces, and a distinct superior excavation for neural canal. The
-articular ends of the anterior caudals are vertically oval.
-
- Length of posterior cervical vertebrae 44 mm 100
- Vertical diameter of ball 24 54.5
- Transverse diameter 29.5 67
- Length of a dorsal vertebra 52
-
-=C. stenops.=
-
-The anterior caudals possess wide diapophyses. Their articular faces
-are a vertical oval, a little contracted above, sometimes a straight
-outline. They present a peculiarly elongate form.
-
- Length of axis (alone) 60 mm 100
- Vertical diameter of ball 27 45
- Transverse diameter of ball 27 45
- Length of the mandible 720 100
- Depth at coronoid process 150 20.9
-
-MEASUREMENTS OF CLIDASTES WESTII.
-
- Length of dentary 400 millim.
- Depth opposite the first tooth 20
- Depth opposite last tooth 62
- Entire extent of mandible 630
- Greatest depth at coronoid process 95
- 2. Length of axis with odontoid process 80
- Length of axis without odontoid process 70
- Vertical diameter of ball 24
- Transverse diameter of ball 33
- 4. Length of fourth cervical vertebra to rim of ball 49
- Expanse of diapophyses 82
- 5. Length of fifth cervical to rim of ball 49
- Transverse diameter of ball 35
- Vertical diameter of ball 28
- Expanse of diapophyses 90
- 8. Length of eighth vertebra to rim of ball 53
- Expanse of diapophyses 90
- 14. Length to rim of ball 54
- Transverse diameter of ball 40
- Vertical diameter of ball 33
- Expanse of diapophyses 100
- 18. Length to rim of ball 50
- Transverse diameter of ball 40
- Vertical diameter of ball 36
- Expanse of diapophyses 100
- 23. Length to rim of ball 50
- Transverse diameter of ball 41
- Expanse of diapophyses 100
- 25. Length to rim of ball 52
- Transverse diameter of ball 43
- Vertical diameter of ball 43
- Expanse of diapophyses 100
- 30. Length to rim of ball 54
- Transverse diameter of ball 46
-
-This species is named in memory of Judge E. P. West, lately deceased,
-to whom our Museum owes so much for his long, diligent and faithful
-labors in the collection and preparation of the geological material.
-
- * * * * *
-
-ERRATUM: P. 17, line 15, for “_Edestosaurus_,” read
-_Clidastes_, and in next line, strike out “Proc. Acad.” etc.
-
-
-
-
-Notes and Descriptions of Syrphidae.
-
-
-BY W. A. SNOW.
-
-WITH PLATE VII.
-
-Among the insects obtained by Prof. F. H. Snow in a recent trip to
-Colorado, is an excellent representative collection of the Diptera.
-The material for the following notes on Syrphidae is chiefly drawn
-from this collection. That such a collection affords so many points of
-interest in this, one of the best studied families of North American
-Diptera, is an evidence of the rich field that is presented by this
-important and little-studied order of insects.
-
-
-CALLICERA.
-
-_Callicera_ Panzer, Fauna Germanica, 1806.
-
-_Callicera_ is a small genus hitherto supposed to be peculiar to
-Europe. The species are found in the high mountains, where the males
-are often taken while hovering in the air. The present collection
-includes numerous specimens of a species taken near the summit of Mt.
-Deception, in Manitou Park, Colorado, at an altitude of nine thousand
-feet.
-
-The occurrence of members of this genus in the western part of the
-United States is a fact of especial interest and further substantiates
-the rule that American forms common to Europe are more apt to occur
-in the western regions. _Arctophila flagrans_ Osten Sacken, is a case
-precisely similar to the present one, belonging as it does to a small
-European genus of mountain flies, and described from Colorado.
-
-As the genus is a new one to our fauna, I here give an amended
-transcription of the generic characters from Schiner’s Fauna Austriaca,
-to include the new species, which differs only in unimportant details.
-
-=Callicera.=
-
-Rather large, stout, green or black species with metallic lustre and
-abundant, long pile. Head hemispherical, somewhat broader than the
-thorax. Antennae porrect, longer than the head, somewhat remote at
-their base, inserted upon a protuberance of the front; first joint
-sometimes elongate; second joint shorter than, or as long as, the first
-joint; third joint one to three times the length of the first two
-joints taken together, with a short, terminal style. Face broad, under
-the antennae concave in profile; an obtuse tubercle below the middle;
-on the sides thickly covered with pile. Proboscis rather prominent,
-with broad labella. Eyes hairy, holoptic in the male. Abdomen
-elliptical, as long or longer than the thorax. Legs moderately strong.
-Third longitudinal vein straight, first posterior cell distally short
-petiolate; marginal cell open; cross-vein situated near the middle of
-the discal cell, oblique.
-
-=Callicera montensis, n. sp.=, Plate vii, f. 4.
-
-MALE. Black, densely golden red pilose. Frontal triangle, face
-and cheeks deep black, shining, covered thickly with black pile, save
-a median facial stripe. Antennae black, basal third of third joint on
-the under side red; first joint short; second joint not more than half
-as long as the first; third joint three times as long as the first and
-second joints taken together; gradually broadened for a third of its
-length, and then attenuated; style white. Eyes thickly clothed with
-golden pile. Thorax and abdomen covered everywhere with long golden
-red pile. Legs black; tarsal joints below and at their articulations
-reddish. Wings nearly hyaline, brownish on the anterior basal portion;
-stigma yellow.
-
-Length 11 millimeters. Three specimens, Colorado.
-
-The genus may be distinguished from _Pelecocera_, in Williston’s
-dichotomic table of the genera of North American Syrphidae, by the
-pilose eyes.
-
-=Microdon megalogaster, n. sp.=, Plate vii, f. 1.
-
-MALE. Large, yellowish pilose species, in shape globose.
-Antennae reddish black, the first joint about as long as the following
-two together; second joint not one-third as long as the third. Face
-dark metallic green, shining, thickly covered with golden yellow
-pile. Front black, with similar pile, narrowed in the middle. Eyes
-bare. Thorax and scutellum deep metallic green, with long, thick,
-golden pile; scutellum gently emarginate, the small obtuse tubercles
-approximate. Abdomen short and broad, black, moderately shining; first
-two segments and the hypopygium somewhat green; pile at base yellow,
-elsewhere short, black. Legs black, with black pile; front tibiae
-and their metatarsi, on the inner side, with short golden pile; hind
-metatarsi incrassate and longer than the three following joints taken
-together. Wings uniformly subinfuscate; veins at the outer part of the
-first posterior and discal cells sinuous and rounded.
-
-Length 12 millimeters. One specimen.
-
-=Chrysotoxum derivatum= Walker.
-
-Eight specimens from Colorado, which vary not a little from each
-other and from Williston’s description. They seem to belong here,
-however, better than elsewhere. In one specimen, the second joint of
-the antennae is shorter than the first, and only one-fourth the length
-of the third. In five examples the second abdominal cross-band is
-not interrupted; in the others it is distinctly parted. In two, the
-third band does not reach the yellow of the broad hind margin; in two
-others it barely touches it; in five, the two bands broadly coalesce.
-The yellow of the fifth segment, in four specimens, incloses a black,
-inverted V; in two others an inverted Y.
-
-=Paragus bicolor= Fabr.
-
-Three specimens, Colorado. These may be located under Schiner’s variety
-_taeniatus_.
-
-=Melanostoma stegnum= Say.
-
- _Syrphus stegnus_ Say, Journ. Acad. Phil. vi, p. 163.
- _Melanostoma tigrina_ Osten Sacken, Western Diptera, p. 323.
- _Melanostoma stegnum_ Williston, Biol. Centr.-Amer. Diptera,
- iii, p. 10.
-
-Eleven specimens, Colorado, which answer well to the descriptions. The
-metallic band of the fourth abdominal segment is sometimes interrupted,
-and there is usually a triangular opaque black spot near the anterior
-border of the fifth segment. “The female, hitherto unknown, has the
-front broad above, pollinose, except on the upper part, and with black
-pile; the thorax more shining metallic blue; the tibiae yellow, and
-on the third and fourth abdominal segments there is a narrow shining
-stripe, bisecting the black, as in the fourth segment of the male.
-The male has some long black hairs on the outer side of the front and
-middle tibiae, which are inconspicuous in the female. It is evident,
-from the lighter color of the tibiae, that Say’s specimens were
-females.” Williston, l. c.
-
-=Melanostoma mellinum= Linne.
-
-A single female specimen from Manitou Park.
-
-=Melanostoma, n. sp.=?
-
-MALE. Face and front dark metallic blue, shining, thinly
-covered with light-colored pollen; tubercle and epistoma black,
-shining, the former small. Antennae black, third joint yellowish red
-below, oblong. Pile of frontal and vertical triangles dusky. Thorax
-bronze-black, shining, sometimes bluish black, the pubescence white.
-Halteres yellowish. Abdomen long and narrow, with almost parallel
-sides; first segment metallic blue, shining; second segment opaque,
-or subopaque, black, with a light metallescent scallop on the sides,
-reaching to the distal third of the segment; third and fourth segments
-similar, marked anteriorly by a wide, interrupted, or subinterrupted
-blue fascia, deeply and widely emarginated, or concave behind; hind
-border of the third, and sometimes of the second segment, narrowly
-brown; fifth segment and the hypopygium metallic bluish green; sides
-of the abdomen with silvery white pile, longest and thickest at the
-base; the blue marking are whitish pruinose. Femora, except the tip,
-a broad ring on the tibiae, and the four posterior tarsi, black;
-elsewhere brownish or yellowish. Wings hyaline, stigma yellowish.
-
-Length 7-8 millimeters.
-
-=Eupeodes volucris=, Osten Sacken.
-
-Numerous specimens, Colorado.
-
-=Syrphus arcuatus= Fallen.
-
-Four specimens, Colorado. These specimens vary not a little from each
-other, and somewhat from the descriptions. One female is very small,
-not over seven millimeters in length, and with the spots on the third
-and fourth abdominal segments hardly oblique. One male has the hind
-femora black as far as the tip, while in three females the black does
-not extend beyond the middle.
-
-=Syrphus disjectus= Williston.
-
-A single female specimen, from Colorado, agrees well with the
-description drawn from males. The pile of the thorax is more whitish
-than orange-yellow, and there are light colored lateral margins on the
-anterior part of the thorax.
-
-=Syrphus ruficauda, n. sp.=, Plate vii, f. 3.
-
-MALE. Eyes bare. Face greenish yellow on the sides, yellow in
-the middle; a rather broad black line marks the border of the mouth
-and is lost in the black of the cheeks. Frontal triangle yellow, with
-long black pile. Antennae dark brown, more or less reddish below.
-Pile of occiput light yellow. Dorsum of thorax deep metallic green,
-the scutellum olivaceous yellow; both with light yellow pile. First
-segment of the abdomen shining black; second segment opaque black,
-with the lateral margins and hind border shining, and with a broad,
-yellow, interrupted band, not reaching the lateral margins; third
-segment similar, but with the yellow band somewhat wider, interrupted
-or subinterrupted and slightly bilaterally oblique; fourth and fifth
-segments orange-red, the sides narrowly black; the fourth segment shows
-indistinctly a broad interrupted band of a somewhat lighter color,
-corresponding to the yellow bands of the preceding segments. Legs light
-brown; basal third of the front and middle femora and basal half of the
-hind femora black. Wings hyaline, stigma yellowish.
-
-FEMALE. Head wanting. Thorax purplish brown. The yellow band
-on the second abdominal segment narrower, the second band straight,
-narrower and interrupted. Legs light brown, except the proximal end of
-the femora, which is black.
-
-Length 9 millimeters. Three males and one female, Colorado.
-
-=Syrphus pauxillus= Williston.
-
-Two specimens from Colorado undoubtedly come here. The species was
-described from a single male specimen. A female specimen offers the
-following differences or additions: Length nine millimeters, mesonotum
-more greenish black or bronze, the pile obscure whitish; fifth
-abdominal segment without yellow spots on the anterior angles; legs
-yellow, with the basal half of the front and middle femora, the hind
-femora except the tip, a broad band on the hind tibiae, and the hind
-tarsi, black.
-
-=Syrphus ribesii= Linne.
-
-Five specimens, Colorado.
-
-=Syrphus americanus= Wiedemann.
-
-Numerous specimens, Colorado.
-
-=Syrphus umbellatarum= Schiner.
-
-Five female specimens, Colorado. The only western locality heretofore
-given is Arizona (Williston).
-
-=Allograpta obliqua= Say.
-
-Five specimens, Colorado.
-
-=Mesogramma marginatum= Say.
-
-Numerous specimens from Colorado, showing very great variation.
-
-=Sphaerophoria cylindrica= Say.
-
-Twenty specimens, Colorado. I think the specimens belong here,
-though a positive identification is hardly possible at present.
-
-=Rhingia nasica= Say.
-
-One specimen, Colorado. This is the first time that this species
-has been recorded from beyond the Mississippi.
-
-=Copestylum marginatum= Say.
-
-Two specimens, Colorado, representing the extremes of variation in the
-species. The male corresponds to _C. lentum_ Williston. Specimens of
-this species were bred from _Opuntia missouriensis_, in company with
-others of _Volucella fasciata_ Macq.
-
-=Sericomyia militaris= Walker.
-
-Sixteen specimens from Minnesota and Colorado vary in the markings of
-the second abdominal segment, and in the color of the legs. Some have
-no spots at all on the second segment; in others the two yellow dots
-are conspicuous, approaching, in size and shape, the markings of the
-third segment. The tibiae vary from light yellow to reddish brown.
-
-=Brachyopa cynops, n. sp.=, plate vii, f. 2.
-
-Head light yellowish brown, largely concealed beneath light glistening
-pollen; the shining ground color shows just above the antennae and in
-a stripe on the cheeks, extending from the eye to the mouth opening.
-Antennae wanting. Dorsum of thorax brown, covered with grayish pollen;
-anteriorly with two approximated, linear, blackish stripes; laterally
-with a broad, interrupted stripe. Scutellum light brown, with yellowish
-pollen. Abdomen but little longer than broad; yellowish gray pollinose;
-second segment with a circular brown spot in the anterior corners; the
-two following segments are marked with corresponding elliptical spots,
-and, in the middle of the anterior border with a triangular spot; on
-the fifth segment are two small round spots. Legs uniformly reddish
-brown, with light colored pollen and short whitish pile. Wing hyaline,
-distinctly clouded at anterior cross-vein, on the veins at the anterior
-outer corner of the discal cell and on the ultimate section of the
-fourth vein; posterior cross-vein about as long as the penultimate
-section of the fourth vein, the included angle obtuse.
-
-Length 5 millimeters. One specimen, Colorado.
-
-=Eristalis latifrons= Loew.
-
-Numerous specimens, Colorado. The commonest Syrphid of the mountain
-meadows. Some specimens have very indistinct brownish spots on the
-second abdominal segment, and, when this is the case, the middle of the
-wing generally shows a brown spot, and brown clouds along the anterior
-veins between the spot and the base of the wing.
-
-=Eristalis brousi= Williston.
-
-One male specimen, Colorado.
-
-=Helophilus latifrons= Loew.
-
-Numerous specimens, Colorado.
-
-=Xylota flavitibia= Bigot.
-
-Eight specimens, Colorado. The glistening pile of the face and front
-varies from white to a golden yellow. On the dorsum of the thorax
-purplish stripes are distinctly visible. The fourth segment of the male
-abdomen is often red, as in the female abdomen.
-
-=Syritta pipiens= Linne.
-
-Eight specimens, Colorado.
-
-=Criorrhina umbratilis= Williston.
-
-A single, male specimen, collected by Mr. W. J. Coleman, at Lawrence,
-and agreeing exactly with the description. The only other known
-specimen of this species is the type, at Washington, from Connecticut.
-
-=Spilomyia quadrifasciata= Say.
-
-Seven specimens, Lawrence, Kansas, (F. H. Snow and E. S. Tucker). The
-species has not hitherto been recorded west of New York.
-
-
-
-
-Notes on Melitera Dentata Grote.
-
-
-BY VERNON L. KELLOGG.
-
-WITH PLATE VIII.
-
-At the meeting of the Entomological Club of the A. A. A. S., held in
-August, 1891, at Washington, Dr. Riley called attention to the habits
-of _Melitera prodenialis_ Walker. The larvae burrow into and feed upon
-the fleshy leaves of the prickly pear, _Opuntia_. Dr. Riley’s specimens
-came from Florida. Prof. J. B. Smith has recently bred the moth from
-the prickly pear in New Jersey. His notes were presented at the same
-meeting of the Club, and the brief references to the interesting
-notes of Doctors Riley and Smith, made in the Canadian Entomologist
-(v. xxiii, num. 11, pp. 242 and 256), suggest the presentation of the
-following notes on _Melitera dentata_ Grote, the western species of
-this Phycitid genus.
-
-Chancellor F. H. Snow, of this University, while investigating a
-grasshopper “outbreak” (_Dissosteira longipennis_) in eastern Colorado
-in July, 1891, noted the withered and dying condition of many leaves
-of the common prickly pear cactus (_Opuntia missouriensis_), and
-on examining the leaves found in them certain large, naked, bluish
-larvae. The larvae were imbedded in the fleshy leaves, eating away the
-soft inner tissue. The hollowed-out spaces were nearly filled with
-irregularly spherical, yellowish, translucent casts. The attacked
-leaves were withered and brown without. Prof. Snow took a few leaves
-and larvae on July 16, near Arriba, Colorado, and brought them to the
-laboratory.
-
-The larvae were put into breeding-cage on July 18. On July 28 one
-larva had spun up and pupated in a corner of the cage behind a small
-porcelain dish. Another had made a cocoon in a broken, empty pupa-case
-of _Eacles imperialis_, but died before pupating. On August —— the
-adults appeared, and have been determined by Prof. J. B. Smith as _M.
-dentata_, Grote. As I am aware of no description of the earlier stages
-of this species, I record the following notes of description:
-
-EGG. About 1-1.2 millimeters in diameter, surface with broad,
-meridian-like furrows from one pole for about one-third of the distance
-to the other pole. Color, creamy white.
-
-LARVA. Food plant, _Opuntia missouriensis_, prickly pear
-cactus, burrowing into the fleshy leaves and eating the soft,
-succulent, inner tissues. Length, 40 millimeters. Five pairs of
-prolegs. Color, one specimen, ultramarine blue; skin, semi-transparent
-and shining anteriorly, dead blue on dorsum; second specimen, buffy
-with a bluish suffusion, blue between segments, prolegs bluish, and
-last abdominal segment blue, especially below; skin more opaque than
-in first specimen. No pronounced markings of skin; spiracles shining
-black and present on first thoracic and first to tenth abdominal
-segments. Head flattened, slightly narrower than first thoracic
-segment, umber. Prothoracic shield well marked, brownish black; anal
-shield, smoky brownish. Clothing, limited to tubercled hairs sparsely
-distributed as follows: a subdorsal line of small tubercles, two
-tubercles to a segment, each tubercle bearing three short, fine hairs;
-a supra-stigmatic line, one tubercle to each segment, each tubercle
-bearing three to four fine hairs; a similar infra-stigmatic line; a
-sub-ventral line of tubercles, bearing usually four fine hairs, the
-tubercles of the three thoracic segments in this line situated at base
-of legs outside, and similarly as to the prolegs on the third to sixth
-abdominal segments. The tubercles in all the lines are faintly smoky.
-The larva is rather heavy, and rotund in form, tapering toward both
-head and posterior segment. It moves with a lumbering gait, but rather
-rapidly.
-
-CHRYSALIS. Length, 20 millimeters; in cocoon of silk, loosely
-covered with small dirt-masses. As made in the breeding cage the
-cocoons were above ground, but concealed under or in available objects.
-
-ADULT. The adults obtained from the breeding cage, (there
-are no others in our collection), are easily distinguished from
-_prodenialis_ Wlk., by the much stronger dentations of the outer line
-of the primaries. Prof. Smith kindly sent a specimen of _prodenialis_
-taken at Ocean Grove, New Jersey, for comparison. The row of marginal
-black spots on the primaries which Hulst (Tran. Am. Ent. Soc., v.
-xvii, p. 172) mentions as distinctive of dentata is as pronounced in
-Prof. Smith’s specimen of _prodenialis_ as in our _dentata_. The much
-lighter color of the primaries, head and thorax in dentata as mentioned
-by Hulst is characteristic. An interesting feature in the venation of
-the hind wings in our bred specimens of _dentata_ is the considerable
-coalescence of the sub-costal and costal veins. Vein five is wanting,
-as mentioned by Hulst. In addition, there is further departure from
-a normal venation, in that vein seven after rising with six from its
-stem, (Hulst says: “Six short stemmed with seven”), coalesces for a
-short distance with eight and then runs free to the margin. Behind the
-forking of seven and six the stem (remnant of sub-costal) unites with
-the costal, and its basal portion is wholly merged with the forward
-vein. This partial disappearance of the sub-costal seems to be shared
-by _prodenialis_ and is probably characteristic of the genus.
-
-Prof. Smith, as recorded in the Canadian Naturalist, v. viii, p. 242,
-(1891), bred several specimens of _Volucella fasciata_, a Syrphid fly,
-from the same prickly pear leaves in which the _Melitera_ larvae were
-living. It is interesting to note that pupariae and later, adults of
-_Volucella fasciata_ and _Copestylum marginatum_, a closely allied
-Syrphid, were noted in the Opuntia leaves from which _M. dentata_ was
-bred. (See note by Dr. Williston, Entomological News, v. ii, p. 165,
-1891).
-
-
-
-
-Diptera Brasiliana.
-
-
-BY S. W. WILLISTON.
-
-PART II.[11]
-
-[11] See Trans. Amer. Entom. Soc. xv, p. 243, for Part I.
-
-
-CONOPS.
-
- 1. First basal cell hyaline 2
- First basal cell clouded throughout 6
-
- 2. Third joint of the antennae as long as the first two together;
- small species _parvus_, n. sp.
-
- Third joint of the antennae but little if any longer than the
- second joint 3
-
- 3. First posterior cell hyaline 4
- First posterior cell more or less clouded 5
-
- 4. Cheeks yellow _angustifrons_, n. sp.
- Cheeks black _ornatus_, n. sp.
-
- 5. Face black in ground-color _argentifacies_, n. sp.
- Face yellow, large species _grandis_, n. sp.
-
- 6. Red species; front red _rufus_, n. sp.
- Black species; front black 7
-
- 7. Face and cheeks black in ground-color _magnus_, n. sp.
- Face and cheeks yellow _inornatus_, n. sp.
-
-1. =Conops magnus, n. sp.=
-
-FEMALE. Front black, shining, the vertical callosity somewhat
-reddish. Face and cheeks yellowish brown, the orbits silvery pollinose.
-Antennae brownish black; second and third joints subequal, first
-joint about two-thirds the length of the second; third joint of the
-style with a long bristly extremity. Thorax shining black; pleurae
-lightly whitish pollinose. Abdomen deep black, opaque; lightly whitish
-pollinose posteriorly; ventral process of the fifth segment large.
-Wings deep brown in front, extending through the two basal cells, and
-the basal part of the discal cell; outer part of the first posterior
-cell subhyaline, as also behind the streak corresponding to the
-spurious vein of the Syrphidae. Legs black; base of the femora, of the
-tibiae, and of the tarsi, somewhat yellowish.
-
-Length 21-24 millimeters. Six specimens, Chapada, H. H. Smith.
-
-2. =Conops grandis, n. sp.=
-
-FEMALE. Front black, the lower margin of the vertical
-callosity reddish; just below the callosity opaque, elsewhere shining.
-Antennae black; the second and third joints of nearly equal length; the
-first joint about two-thirds the length of the second joint; style with
-a long bristly extremity. Face and cheeks light yellow, the orbital
-margins of the former silvery or light golden pollinose. Thorax black,
-the mesonotum shining, the pleurae lightly whitish pollinose. Abdomen
-deep black; posteriorly lightly pollinose. Wings brown in front;
-first posterior cell and the space behind the streak corresponding to
-the spurious vein of the Syrphidae in the first posterior cell, pure
-hyaline; outer part of the first posterior cell subhyaline; a brown
-streak in front of the fifth vein. Legs black; the tibiae and basal
-joints of the tarsi in large part reddish or yellowish; pulvilli light
-yellow; ventral process of the fifth segment extraordinarily large;
-seventh segment as long as the three preceding together.
-
-MALE. Abdomen in ground-color black, either wholly so, or more
-or less, or rarely entirely, red; the ground color, save at the base,
-however, is almost wholly obscured by reddish brown pollen.
-
-Length 19-23 millimeters. Six specimens, Chapada, H. H. Smith.
-
-3. =Conops rufus, n. sp.=
-
-MALE, FEMALE. Head red; face in the depression yellow, on the
-sides with a silvery sheen. Antennae black; first joint red, more than
-half of the length of the second joint; second joint sometimes reddish
-at the base; third joint about as long as the second joint, stout;
-third joint of the style suddenly attenuated into a moderately long
-bristly extremity. Thorax red; mesonotum with a median black stripe,
-and an oval, more or less distinct spot on either side; a golden
-pollinose spot on the inner side of each humerus. Abdomen red, lightly
-pollinose, the median segments more or less black; ventral process in
-the female large; the sixth segment in the same sex about as long as
-the two preceding together. Legs red, the tarsi a little darker, the
-pulvilli and the ungues, save their black tip, yellow. Wings brown in
-front, the brown extending to the fifth vein in the basal part of the
-discal cell; the space behind the spurious vein in the first posterior
-cell hyaline; the outer part of the same cell subhyaline.
-
-Length 16-17 millimeters. Two specimens, Chapada, H. H. Smith.
-
-4. =Conops angustifrons, n. sp.=
-
-MALE. Front much longer than wide; black, shining at the
-vertex and below; an opaque band below the vertical callosity. Antennae
-black, the third joint somewhat reddish below towards the base; the
-first joint about half of the length of the third joint; third joint
-distinctly shorter than the second, rather broad at the base; style
-small, attenuate. Face, cheeks and the lower part of the occiput
-wholly light yellow. Thorax opaque black; a whitish pollinose spot
-on the inner side of each humerus; vertical pleural pollinose spot
-not distinctly limited above; a row of dorso-pleural, at least two
-prescutellar, and four scutellar, well-developed bristles. Abdomen
-subopaque black; second segment yellow at the base; sixth segment
-opaque golden yellow pollinose. Wings brownish before the third
-longitudinal vein, the first basal and the first posterior cells wholly
-hyaline; a streak before the fifth vein. Legs deep brown; the base of
-all the tibiae, the large pulvilli, and the claws (except their tips)
-yellow.
-
-Length 12 millimeters. One specimen, Chapada, H. H. Smith. This species
-is peculiar in its narrow front, bristles of the thorax, and hyaline
-first posterior cell.
-
-5. =Conops nobilis, n. sp.=
-
-FEMALE. Head black; front, below the vertical callosity,
-except a crescentic space above the base of the antennae, opaque;
-face, on the sides and in the depression, with a conspicuous, light
-yellowish silvery reflection; in an oblique light from above the
-ground-color wholly concealed. Antennae black; the reddish first joint
-about two-thirds the length of the third joint; the third joint about
-two-thirds of the length of the slender second joint; third joint
-of the style with a short bristly extremity. Thorax black, lightly
-pollinose, opaque; on the front margin, and near the humeri, velvety;
-in the middle in front distinctly whitish when seen from behind.
-Abdomen black, subshining; second segment deep opaque black, save on
-the anterior part, where it is whitish pollinose; ventral process of
-the fifth segment small. Legs black; the tarsi and claws (save their
-extreme tips) light yellow; pulvilli very large, yellow; the tarsi
-dilated. Wings unequally brown in front, scarcely extending beyond the
-third vein, save in the first posterior cell; the costal cell and the
-outer part of the wing in front of the third vein of a lighter color.
-
-Length 12 millimeters. One specimen, Chapada, H. H. Smith.
-
-6. =Conops inornatus, n. sp.=
-
-MALE. Front black, shining, the vertical callosity reddish.
-Face yellow, with golden pollen on the sides extending up on the
-lower part of the front. Cheeks wholly yellow. Thorax black, shining,
-lightly pollinose; margins of the thorax and of the scutellum with
-moderately large bristles. Abdomen slender, black, shining; the narrow
-hind margins of the third and fourth segments, the fifth on the sides
-and behind, and the sixth nearly wholly, light golden pollinose. Legs
-brown; base of tibiae yellow; basal joints of the tarsi yellowish.
-Wings subhyaline, without distinct picture, though the color is more
-intense in front; yellow in the costal cell.
-
-FEMALE. Wings distinctly brown before the third vein and
-in the basal cells and proximal portion of the discal cell. Abdomen
-diffusely whitish pollinose behind; the second segment largely reddish;
-ventral process of the fifth segment small.
-
-Length 10 millimeters. Two specimens, Chapada, H. H. Smith.
-
-7. =Conops ornatus, n. sp.=
-
-MALE. Vertical callosity reddish; below it an opaque black
-band, connected in the middle with a V-shaped spot about the base of
-the antennae; the front elsewhere, and the face for the greater part,
-light yellow, the sides of the latter with a broad silvery sheen.
-Cheeks black. Antennae red; the first joint a little shorter than the
-third joint; second joint about twice the length of the first; style
-short, thick. Thorax black, opaque; near the humeri and behind, as
-also on the scutellum, thickly golden pollinose; pleurae diffusely
-pollinose. Abdomen opaque black; the hind margin of the first three
-segments, and the remainder of the abdomen, save spots on the sides of
-the fourth and fifth segments, thickly light golden pollinose. Legs
-reddish brown, the base of the tibiae and the basal joints of the tarsi
-yellowish. The brown of the wings extends to the third vein and through
-the middle of the first posterior cell; costal and subcostal cells
-lighter colored.
-
-Length 11 millimeters. Two specimens, Chapada, H. H. Smith.
-
-8. =Conops parvus, n. sp.=
-
-FEMALE. Closely allied to _C. sylvosus_ Williston, but differs
-in the lighter colored antennae and their more elongated third joint,
-which is as long as the first two joints together; in the wings being
-wholly grayish hyaline, save a quadrate brown spot in front a little
-beyond the middle; and in the lighter colored legs and abdomen. The
-proboscis is as long as the antennae; the legs are brown or brownish
-yellow.
-
-Length 8 millimeters. Two specimens, Chapada, H. H. Smith.
-
-
-Explanation of Plates.
-
- PLATE I. Skull of _Pteranodon_ sp., one-fifth
- natural size.
-
- PLATE II. Left front paddle of _Clidastes velox_
- Marsh, two-thirds natural size. _C_, coracoid; _S_,
- scapula; _H_, humerus; _I_, first digit; _V_, fifth
- digit.
-
- PLATE III. Left hind paddle of _Clidastes velox_
- Marsh, two-thirds natural size. _Il_, ilium; _P_, pubis;
- _Is_, ischium; _F_, femur; _T_, tibia; _Fb_, fibula;
- _I_, first metatarsal.
-
- PLATE IV. Right front paddle of _Clidastes Westii_
- Williston, one-third natural size. _S_, scapula; _C_,
- coracoid; _H_, humerus; _R_, radius; _U_, ulna; _I_,
- _IV_, first, fourth digits.
-
- PLATE V. Right hind paddle of _Clidastes Westii_
- Williston, one-half natural size.
-
- PLATE VI. Eighteenth dorsal vertebra of _Clidastes
- Westii_ Williston, natural size. Fig. 1, centrum from
- behind; fig. 2, from below.
-
- PLATE VII. Fig. 1, _Microdon megalogaster_ Snow;
- fig. 2, _Brachyopa cynops_ Snow; fig. 3, _Syrphus
- ruficauda_ Snow; fig. 4, _Callicera montensis_ Snow;
- fig. 5, _Tropidomyia bimaculata_ Williston; fig. 6,
- _Rhingiopsis rostrata_ Roeder; fig. 7, _Ancanthina
- hieroglyphica_ Wiedemann.
-
- PLATE VIII. _Melitera dentata._ Adult, silken
- cocoon and outer layer of dirt-masses held together by
- silken threads; larva (shaded); larva in outline showing
- position and number of tubercled hairs; hind wing of
- adult showing venation.
-
-PLATE I.
-
-Skull of _Pteranodon_ sp., one-fifth natural size.
-
-[Illustration: KAN. UNIV. QUART. VOL. I. PLATE I.
-
-S. W. Williston.]
-
-PLATE II.
-
-Left front paddle of _Clidastes velox_ Marsh, two-thirds natural size.
-_C_, coracoid; _S_, scapula; _H_, humerus; _I_, first digit; _V_, fifth
-digit.
-
-[Illustration: PLATE II.
-
-S. W. Williston, ad nat. del.]
-
-PLATE III.
-
-Left hind paddle of _Clidastes velox_ Marsh, two-thirds natural size.
-_Il_, ilium; _P_, pubis; _Is_, ischium; _F_, femur; _T_, tibia; _Fb_,
-fibula; _I_, first metatarsal.
-
-[Illustration: PLATE III.
-
-S. W. Williston, ad nat. del.]
-
-PLATE IV.
-
-Right front paddle of _Clidastes Westii_ Williston, one-third natural
-size. _S_, scapula; _C_, coracoid; _H_, humerus; _R_, radius; _U_,
-ulna; _I_, _IV_, first, fourth digits.
-
-[Illustration: PLATE IV.
-
-S. W. Williston, ad nat. del.]
-
-PLATE V.
-
-Right hind paddle of _Clidastes Westii_ Williston, one-half natural
-size.
-
-[Illustration: PLATE V.
-
-S. W. Williston, ad nat. del.]
-
-PLATE VI.
-
-Eighteenth dorsal vertebra of _Clidastes Westii_ Williston, natural
-size. Fig. 1, centrum from behind; fig. 2, from below.
-
-[Illustration: PLATE VI.
-
-FIG. 1.
-
-FIG. 2.
-
-S. W. Williston, ad nat. del.]
-
-PLATE VII.
-
- Fig. 1, _Microdon megalogaster_ Snow.
- Fig. 2, _Brachyopa cynops_ Snow.
- Fig. 3, _Syrphus ruficauda_ Snow.
- Fig. 4, _Callicera montensis_ Snow.
- Fig. 5, _Tropidomyia bimaculata_ Williston.
- Fig. 6, _Promerisana nasuta_ Macq.
- Fig. 7, _Ancanthina hieroglyphica_ Wiedemann.
-
-[Illustration: PLATE VII.
-
-Mary Wellman and S. W. Williston, ad nat. del.]
-
-PLATE VIII.
-
-_Melitera dentata_ Grote; adult, silken cocoon and outer layer of
-dirt-masses held together by silken threads; larva (shaded); larva in
-outline showing position and number of tubercled hairs; hind wing of
-adult showing venation.
-
-[Illustration: PLATE VIII.
-
-Mary Wellman, ad nat. del.]
-
-
-
-
-PROSPECTUS.
-
-
-The KANSAS UNIVERSITY QUARTERLY is established by the
-University of Kansas, and will be maintained by it as a medium for
-the publication of the results of original research by members of the
-University. Papers will be published only upon recommendation by the
-Committee of Publication. Contributed articles should be in the hands
-of the Committee at least one month prior to the date of publication.
-A limited number of author’s _separata_ will be furnished free to
-contributors.
-
-The QUARTERLY will be issued regularly, as indicated by its
-title. Each number will contain fifty or more pages of reading matter,
-with necessary illustrations. The four numbers of each year will
-constitute a volume. The price of subscription is two dollars a volume,
-single numbers varying in price with cost of publication. Exchanges are
-solicited.
-
-Communications should be addressed to
-
- V. L. KELLOGG,
- University of Kansas,
- Lawrence.
-
-
-
-
-
-End of the Project Gutenberg EBook of The Kansas University Quarterly, Vol.
-I, No. 1 (1892), by Various
-
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