2O0 Bulletin American Musemn of Natural History. [Vol. X, 



characteristic last lower molar, m^ in the cotype, is wanting. 

 The species must therefore rest upon the characters of the cotype. 

 No lower teeth were found with the fine palate (No. 275, Am. 



Fig. 20. Coryphodo}! elcpJiatitoptis, Cotype. Lateral, superior and sectional views of 

 cranium. No. m, U. S. Nat. Mus. Coll. 



Mus.) rightly associated with the cotype by Earle. The cranial 

 and dental characters of the cotype (Fig. 20) are those of C 

 testis and C. lobatus upon a smaller scale ; m^ has a well-marked 

 postero-external elbow (Fig. 15), and the paracone is sharply ciis- 



