120 Life of Lower Lake Region. 



with different measures of the features of that 

 family. One of these, represented on Plate 

 XVI by a jaw and several molars, under the 

 name Entelodon, is perhaps the largest of 

 the family. This old time companion of the 

 rhinoceros reminds one in many ways of the 

 hippopotamus to which it was closely related. 

 Its prominent canines, unlike the angular 

 tushes of the hog, were well rounded and are 

 often found in the rocks of this Miocene lake. 

 Many years ago Dr. Leidy described this En- 

 telodon from specimens discovered in the 

 "Bad Lands" of Nebraska. There, too, they 

 were found in lake sediment in company with 

 the Rhinoceros and Oreodon. 



BOTHROLAB1S. 



Another member of the hog type was rep- 

 resented in Oregon by the Bothrolabis. There 

 were two separate species which fairly rep- 

 resent the peccary of to-day. The larger of 

 these, given on Plate XVII, looks quite hog 

 like; the other one is a symmetrical, hand- 

 some head of a smaller Bothrolabis. 



