181 Cool: — JSfew Proboscidean from the Lower Miocene. 



Although the specimen is provisionally referred to the 

 genus Gomphotherium, it probably represents an nnd escribed 

 genus, and may be a persistent primitive type. 



It does not agree with any known type of Entelodon in that 

 the cingnlum is very much heavier and crinkled, developing 

 distinct cusps. Though it is impossible to state the exact 

 molar tooth-pattern, owing to the fragmentary condition of 

 the specimen, one tooth shows a particularly well-developed 

 cusp on the cingulum, about one-fourth of an inch in height. 



As it is an unexpected type from these beds, a word as to 

 its occurrence may be in order. There can be no question as 

 to its belonging to the Upper Harrison beds, as a part of one 

 tooth was found in the matrix. In the light of the latest dis- 

 coveries in these beds, they appear to represent a phase of the 

 Lower Miocene. 



The writer is indebted to Prof. Charles Schuchert and Prof. 

 K. S. Lull of Yale, also Prof. H. F. Osborn and Dr. W. D. 

 Matthew of the American Museum of Natural History, for 

 assistance rendered in the study of this type. 



American Museum of Natural History, 

 New York, Dec. 12, 1908. 



