CO Li YP LI ODOX. 
229 
Coryphodon molestus, Cope. 
Bathmodon molestus, Cope, Iteport Vert. Foss. New Mexico, U. S. Geog. Survs. \V. of 
lOOtb M., 1874, p. 9. 
Bathmodon lomas, 1. c., p. 9. 
One of tlie bad-land buttes of tlie Gallinas exhibits a bone-bed com¬ 
posed of skeletons of Coryphodonts lying together and dislocated in various 
degrees. Several days were spent in excavations, and many bones were 
secured, which represent all portions of the skeleton of several individuals. 
The cranial fragments with dentition belong to two species, the Coryphodon 
latidens and the C. molestus. The bones found in immediate proximity to 
the jaws of the former have been described in connection with them, and 
the bones found in connection with the cranium of C. molestus are described 
here. It is extremely probable that the latter belong to the same animal. 
The C. molestus is represented by a nearly entire cranium, including 
mandible obliquely distorted by pressure. Immediately associated were 
found fore and hind limbs with the feet, scapular and pelvic bones, with 
cervical vertebrae. Bones of two or three other skeletons were found in 
proximity to these. Most of them are distorted by pressure, the feet being 
in the best state of preservation. Fragmentary skulls of two other indi¬ 
viduals found in remote localities present the characters of this species. 
One of them includes the grooved canine teeth. 
The C. molestus is distinguished by the forms of its canine and molar 
teeth and its premaxillary bone. The superior canine is more com¬ 
pressed, and has a narrower section than that of any other species of the 
genus, approaching in this respect the Metalophodon armatus. The anterior 
lace of the crown is the narrowest, and is concave in section, consisting of 
an open groove, which narrows toward the apex. The posterior face of the 
crown is the widest, and, like the exterior, slightly convex. The three angular 
margins are acute and trencliant, but not serrate. The inferior canine has a 
flat interior and convex exterior face, which are separated by anteriorly 
and posteriorly directed cutting-edges. They differ distinctly from those of 
the C. elephantopus and the C. latidens, Avhere the section is triangular to the 
apex, the external angle being rounded. The size of these teeth is less 
than in other species, which is partly to be traced to the young age of the 
