DIVIStON OF VERTEBRATE PALEONTOLOGY — GILMORE 375 



A musk-ox skull {Syiribos cavifroris) from the Pleistocene of 

 Indiana and a nearly perfect carapace and plastfon of the turtle 

 Aspideretes superstei from the Paskapoo of Alberta, Canada, were 

 purchased. A plaster cast of the snake Boavus idelmania from the 

 Eocene of Wyoming was received in exchange with the American 

 Museum of Natural History. A plaster cast of a skeleton of 

 Eohippus from the Big Horn Basin, Wyo., was presented by Dr. 

 E. R. Troxeil. Two perfectly preserved eggs of the extinct ostrich 

 Struthio m^dersom.i from the loess of China were purchased. 



193S 



Specimens resulting from a field expedition to central Utah and 

 northern Arizona, under Charles W. Gilmore. benefited both the 

 mammalian and reptilian collections. Those worthy of special men- 

 tion were a partial skeleton of the large sauropod dinosaur Alamo- 

 scmrus sanjtmnensis ; disarticulated skull and skeletal parts of a 

 horned dinosaur; skeletal parts of six individuals of the extinct 

 lizard PolyglypHatwd^n sternbergi (Gilmore, Charles W., Smith- 

 sonian Misc. Coll., vol. 99, No. 16, pp. 1-3, 1940) all from the North 

 Horn formation, Upper Cretaceous: 15 mammalian specimens from 

 the Dragon formation, Paleocene (Gazin, C. L., Journ. Washington 

 Acad. Sci., vol. 28, pp. 271-277, 1938). From the Triassic of Ari- 

 zona this same expedition collected three phytosaurian skulls and a 

 skull of the amphibian Busttneria. 



Through participation in the Dallas Exposition important speci- 

 mens and illustrative materials were received as gifts from the United 

 States Texas Centennial Commission. The more important of these 

 were a skeleton of the Eocene flightless bird Dmtr-ymu; a unique 

 specimen of Glyptosaunis gig ant em ^ having the dermal armor of the 

 skull and neck preserved in situ (Gilmore, C. W., Proc. U. S. Nat. 

 Mus., vol. 86, pp. 16-21, pi. 1, 1938) ; a nearly complete articulated 

 tail of Camarasaums; and the articulated pelvis, hind limbs, feet, and 

 tail with large patches of skin impressions of a crested hadrosaurian 

 dinosaur {C orythosawrm) from the Upper Cretaceous of Alberta, 

 Canada. From this source also was a diorama, illustrating the fauna 

 and flora of the Jurassic, and two canvases (8 by 15 feet), one a res- 

 toration of the sauropod dinosaur C amarascmrm by R. Bruce Hors- 

 f all, the other a restoration of Dimetrodon and other Permian animals 

 by Garnet W. Jex. 



A skull of Merycoidodon gracilis (Leidy, J., Smithsonian Contr. 

 Knowl., vol. 6, p. 54, pi. 5; figs. 3-4, and pi. 6, figs. 6-7, 1853), of 

 much historical interest since it originally belonged to the Evans 

 collection, was received in exchange with Columbia Univei-sity. 



