DIVISION or VERTEBRATE PALEONTOLOGY GILMORE 373 



To the collections of fossil birds were added a partial skeleton of v 



Hesperornis from the Upper Cretaceous of Kansas purchased from 

 George F. Sternberg ; limb bones of Eognis aeola from the Eocene of 

 Mongolia received as a gift from the American Museum of Natural 

 History ; and representative parts of the skeleton of Batliomis celeripes 

 from the Oligocene of Wyoming, a gift from the Museum of 

 Comparative Zoology. 



1935 



The most important accession of this year was a collection of mam- 

 malian fossils from the Pliocene, near Hagerman, Idaho, made by a 

 field party under the direction of the assistant curator. Dr. C. L. Gazin. 

 Remains of Plesippus shoshonensu formed the bulk of the collection, 

 there being 65 skulls, a number of partially articulated skeletons, be- 

 sides a vast number of bones of all parts of the skeleton (Gazin, C. L., 

 Proc. U. S. Nat. Mus., vol. 83, pp. 281-320, 1936). Other specimens 

 worthy of mention were three articulated skeletons of the peccary; 

 Platyganus pearcel, a new species (Gazin, C. L., Journ. Washington 

 Acad. Sci., vol. 28, pp. 41-49, 1938) ; a skull of Stegomcistodon; the 

 type of Ceratomeryx prenticei (Gazin, C. L., Journ. Pal., vol. 9, pp. 

 390-393, 1935) ; skulls and skeletal parts of beavers, otters, several 

 birds, and many specimens of the microfauna. 



An excellent articulated skeleton of Camarasauriis, representing an 

 animal 30 feet in length from the Jurassic of the Dinosaur National 

 Monument, Utah, was received in exchange with the Carnegie 

 Museum. 



The type specimen of Palaeophis v'lrginianm (Lynn, W. G.^ 

 Johns Hopkins Univ. Stud, in Geol., No. 11, pp. 245^9, 1934) 

 from the Eocene of Virginia was presented by Dr. W. G. Lynn. 

 Two fossil cetacean skulls from the Miocene of California were 

 presented by T. V. Little and C. A. Pratt. A fine skull and 

 lower jaws of Archae other lum from the Oligocene of Nebraska 

 Avas presented by Edward S. Tyler. 



Five model restorations illustrating the evolution and devel- 

 opment of the horse in North America were presented by Mrs. 

 J. W. Gidley. This gift has a special significance since these were 

 modeled by the late Dr. James W. Gidley, for many years connected 

 with this division. 



1936 



The most important acquisition this year was a collection made 

 by a party operating in Montana and Wyoming, under the direction 

 of the curator, Charles W. Gilmore. Additional materials greatly 

 augmented the collection from the Two Medicine, Upper Cretaceous. 



