AKT. 34 TYPE OF ELEPHAS EOOSEVELTI HAY HAY 5 



is still at right angles ^ith the grinding surface of the second 

 molar. 



After this paper was put into type Prof. H. F, Osborn redescribed 

 his specimen under the name Mammonteus prhnigenius coinpressus 

 (Amer. Mus. Novitates, Xo. 152, December 20, 1924). The present 

 writer believes that the remains belong to Elephas roosevelti. The 

 rear of the tooth has the appearance of being restored by the artist. 



Eleylms roosevelti is most closely related to Elephas horeiis^ as is 

 shown by the number of plates in the hinder molars, their thickness, 

 and the thinness and simplicity of the enamel. The species appears 

 to differ from E. horeus in the approximate parallelism of the upper 

 and lower borders of the hinder upper molars and their perpendic- 

 ular position as they begin to function. This position is quite dif- 

 ferent from that of the hinder molars of the Indian and the African 

 elephants at the same stage. It is to be hoped that the early dis- 

 covery of a complete skull of Elephas roosevelti will add to our 

 knowledge of the species. 



