8 



PROCEEDINGS OF THE NATIONAL MUSEUM 



Vol. (i8 



U. S. Nat. Mus., vol. 46, 1913, pp. 268, 271, pi. 26). They also lack 

 the deep <,a-oove on the inner face which separates the lobes of 

 C . sulcafus and also of C . hesternus. These differences are brought 

 out in the figures here presented (fig. 1, CameJops aransas, fig. 2, 

 C. sulcatus). Considering this structure, the writer is not able to 

 refer the jaw to any described form and he regards it as better to 

 give it a definite name and status. It is, therefore, to be called 

 Camelops aransas. It is possible that it belongs to the genus Camelus. 



Figs. 1-2. — .Sectio.ns neau r.\se of lowek molaks 2 ani) o of camels. 1, Camelops 

 AUAN.sAs : 2, Camelops sulcatos. Neauly actual size 



The cannon bone probably belongs to the same species. It indicates a 

 large animal. It measures 94 mm. across the distal end witli a space 

 of 9 mm. between the two divisions. 



ANANCUS ORARIUS. new species 



Plate 2, li-. 1 : iHtite 3. lij;. 1 ; plate 4 ; plate 



1-3 



The mastodon to which this name is applied is re})resented by the 

 symphysis and somewhat less than one-half of both horizontal 

 rami with a much-worn right second molar, the complete crown of 



