124 PROCEEDINGS OP THE NATIONAL MUSEUM. vol.58. 



Family CERVIDAE. 



ODOCOILEUS VIRGINIANUS (Ziranieiman). 



In the paleontological collection are a part of an antler, six cubo- 

 navicular bones, an upper right very slightly worn molar, appar- 

 ently the hindermost, and a lower left second molar. These have 

 the museum's catalogue number 9113. They probably belong to the 

 species named above, but the upper molar by its size and develop- 

 ment of the styles seems to approach O. hcmioniis. This molar is 

 15.5 mm. long on the outer face and at the base : 18 mm. at the summit. 

 The width is 16 mm.; the height of the crown, 14.5 mm. Several 

 metapodials and fragments of antlers are preserved in the department 

 of anthropology of the United States National Museum. 



CERVUS CANADENSIS (Erxleben). 



This species is represented by one tooth, a lower right fourth 

 premolar (Cat. No. 9114), and a fragment of an antler. 



CERVALCES ROOSEVELTI? Hay. 



Pliite 6. figs. 1-2, 5-8. 



In the Afton collection there are three upper premolars, a part 

 of an upper molar, a lower incisor, and a part of the left ramus of 

 the lower jaw, with the second and third molars. To the incisor has 

 been given the catalogue number 9115; to the premolars and frag- 

 ment of molar, the number 9116; to the lower molars, the number 

 9117. More especially on geographical grounds these teeth are re- 

 ferred to C. roosevelti. The writer has not had the opportunity to 

 compare them with those of the fine specimen of C. scotti, at Prince- 

 ton, New Jersey. The upper premolars differ from those of Alces 

 americanus in the much M^ider anterior style, this having a width of 

 about 8 mm. at a level 10 mm. above the base of the tooth. What is 

 taken to be an upper third premolar measures 23 mm. in length at 

 the base, 29 mm. in width. A fourth premolar is 25 mm. long at th© 

 base and 30 mm. wide. The incisor, a first or second, differs from 

 that of the existing moose in having a much longer lingual surface 

 (pi. 6, figs. 5, 6). The width is 14 mm. The lower molars (pi. 6, 

 figs. 1, 2) resemble closely those of Alces. On comparison with a. 

 number of teeth of the latter it appears that on the inner face of the 

 hindermost molar the ribs on the first and second lobes of Cervalces 

 are more strongly developed, so that the face is hardly concave, and 

 may be even convex. The median rib increases in width as it ap- 

 proaches the cingulum and coalesces with the style behind it, which 

 is also broader than in Alces. In the case of the second molar these 

 differences do not seem always to hold good. The length of the sec- 

 ond molar is 27 mm. ; its width, 21.5 mm. The length of the third 

 molar is 41.5 mm. ; its anterior width, 21.5 mm. 



