CiTAF. XII. 



REPTILES. 



35 



on his snout and forehead three curious horns, of which 

 the female has not a trace. These horns consist of 

 an excrescence of bone covered with a smooth sheath, 

 forming part of the general integuments of the body, 

 so that they are identical in structure with those of a 



Fig. 35. Chaniaelcon Ijlfurcu?. Upper fijnrn, male: lower figure, female. 



bull, goat, or other sheath-horned ruminant. Although 

 the three horns differ so much in appearance from 

 the two great prolongations of the skull in C. hifiireus, 

 we can hardly doubt that they serve the same general 

 purpose in the economy of these two animals. The 



D 2 



