308 TAPIROIDA. 



by the entire and consolidated fang. The flattened surface, 

 (fig. 105, B,) is gently undulating, convex in the middle and 

 concave at each side near the ridges in the transverse di- 

 rection : the crown is defended by two layers of enamel : 

 the outer and thicker layer has a minutely wrinkled sur- 

 face and terminates near the base of the crown by a 

 finely plicated border (B, ) ; extending lower upon the 

 posterior and outer than upon the anterior and inner sides 

 of the crown. The thin and smooth layer of the enamel 

 extends to and defines the base of the crown (B, 5) ; the 

 outer layer being coextensive with the inner one only at 

 the two boundary ridges, and the inner layer being ex- 

 tended further upon the tooth at its anterior and inner 

 sides. The length of this tooth must have been three 

 inches when entire ; the circumference of the base of the 

 crown is two inches, nine lines. From its close resem- 

 blance in the essential characters of its form to the canines 

 of the great extinct Tapiroid Pachyderms, and the appa- 

 rent specific distinctions from any of the known species 

 of Lophiodon, I strongly suspect it to have belonged to a 

 Coryphodon : its proportions agree with those of the molar 

 teeth of the CorypJiodon eoc&nus, and the enamel has the 

 same delicate wrinkled surface ; and, although in the 

 question of the specific identity of two fossils from differ- 

 ent localities, identity of geological formation would, of 

 itself, be of small moment, it adds to the probability 

 arising from the arguments derived from organic agree- 

 ment. 



