268 PROCEEDTYGS OP THE NATIONAL MUSEUM. tol. 46. 



generically distinct from Auchenia and with him accepts Leidy's 

 name Camelops. 



The present writer has recently had occasion to study some of the 

 materials belonging to Pleistocene camels. In the United States 

 National Museum is Leidy's type of his Megalomeryx niohrarensis, a 

 fragment of the left side of the lower jaw containing a much worn 

 second premolar; likewise the little worn right lower second molar 

 identified as belonging to the same species.^ In looking for other 

 materials the writer found Cragin's type of his Auchenia huerfanensis. 

 This was discovered in 1884 in beds of volcanic ashes, along a small 

 tributary of the Pluerfano River, in Huerfano County, Colorado, 

 by the geologist Mr. R. C. Hills, of Denver. It had afterwards been 

 for some time deposited in the Colorado Scientific Society, and while 

 there had been described by Professor F. W. Cragin. Later it was 

 presented, together with a considerable quantitj^ of other fossil ma- 

 terials, by Hills to the United States National Museum. Here it 

 now has the catalogue number 7819. It presents a part of the right 

 maxilla with the last premolar and the molars, all in good condition; 

 a part of the left maxilla with the roots of two premolare and of two 

 molars; the right ramus of the lower jaw, lacking most of the sym- 

 physis and containing the fourth premolar and the first molar; the 

 left ramus, lacking most of the ascending portion, and of the sym- 

 physis, and furnishing all the molars in fair condition, and the root 

 of the fourth molar; portions of both premaxillse; a part of the 

 occiput; many small fragments of the brain-case and of the face; 

 the distal ends of the metapodials of one foot; and one proximal 

 phalanx. 



The writer has at hand likewise some remains of two or three indi- 

 viduals of a camel which evidently belonged to the same genus as 

 those already mentioned. These remains consist of two symphyses 

 of lower jaws, with the incisors and canines; a part of a right horizon- 

 tal portion of a lower jaw, containing the cheek-teeth; a few other 

 lower teeth and parts of still others; and one as yet uncut upper last 

 molar. These materials were found in 1905, by Mr. F. C. Horn, at 

 Minidoka, Idaho, not far from Shoshone, in a bed of gravel which 

 was overlain by a lava flow. In the same gravels were found bones 

 of a large elephant, a part of a lower jaw of a horse, and two horn- 

 cores of a bison, which the writer identifies as Bison alleni. A part of 

 the camel remains bears the United States National Museum cata- 

 logue number 2579; another part, the number 5315. 



In the National Museum there are three incisors and a part of a 

 large molar of a camel which were found in 1867, by Mr. E. L. 

 Berthoud, in "loess deposits of the big ravine on north bank of Big 

 Thompson River," near Greeley, Colorado. The locality is close 



1 Journ. Acad. Nat. Sci. Phila., n. s., vol. 7,.p. ICl, pi. 14, flgs. 12-14. 



