1198 The Amblypoda. [ December, 
poral ridges (Figs. 20-21). The dental formula is the complete 
one of I.3; Pm.{; M.§. The superior canines are very power- 
ful, and have three sides, giving a ‘triangular section. In some 
of the species (C. molestus), this tooth is more compressed 
pe, from the Wasatch beds of 
Original. 
a female. 
From the small size of the canine probably 
-— Lower jaw associa:ed with the foot bones of Bathmodon radians Co 
Wyoming, three-eighths nat, size. 
Fic. 18 
towards the apex, and the posterior face is narrow and concave, 
forming a groove. The inferior canines are also triangular 1n 
section, and the anterior angle is produced into an ala at te 
base (Figs. 9 c, 232). The neck and tail are of median a 
The general appearance of the Coryphodons, as determine e 
gl in a SEE e S E 
