168 BULLETIN OF THE 
terior crest is also strongly developed. In its great inward extension m! has 
lost the internal cingulum, which is well developed in m? and m%, as well as in 
the premolars. The broken outer contour of the molars indicates that the 
outline was similar to that observed in the Amynodon molars. 
Ficure 9.— Base of skull of Metamynodon. ppf, post-palatine foramen. fov, foramen 
ovale. fim, foramen lacerum medium. fp, foramen lacerum posterius. As, alisphe- 
noid canal. 
MEASUREMENTS 
Skull. 
Length of the skull from the incisor alveolus to the occipital condyles . 550 
Transverse measurement, outside of the zygomatic arches . . . . . .865 
Heichitoef the-‘oteipat: i. :; 0.) sss gee > Ams fen eh = ed eee eee 
Breadth “ EE a Gal te AS hale! es) ew he eee 
Length of face, front of orbit to premaxillaries, anterior border . . . .170 
Length of cranium, front of orbit to occiput. . . . . . . . . + .885 
