1913] 



Merriam: A Camel from Raneho La Brea 



317 



RELATION OF RANCHO LA BREA SPECIMENS TO PREVIOUSLY 

 DESCRIBED PLEISTOCENE FORMS FROM NORTH AMERICA 



It is perhaps undesirable at this stage in the study of the 

 Raneho La Brea camels to attempt a final determination of their 

 relationships to all of the known North America forms, but the 

 broader outlines of the problem may be presented. 



The Raneho La Brea specimens so far as known are clearly 

 distinguished from the American Pleistocene species referred to 

 the genera Eschatius and Camelus. They are separated from 

 both Camelus and Eschatius by their dental formula of ^, |,f, §-. 



In the mandible from Hay Springs referred by Wortman 7 to 

 the genus Camelus the formula is 3-, T , Y ,3- ; the inferior canine 

 is more or less incisiform, and is not separated from I, by a 

 marked diastema ; and P, is caniniform. 



The genus Eschatius is characterized by the most extreme 

 reduction known in the cheek-tooth dentition, the formula of 



I Ob 



Figs. 10a and 10b. Camelops Jcansanus Leidy. Type specimen, adapted 

 from Leidy, natural size. Fig. 10<r, anterior end of rostral region, lateral 

 view; fig. 101), anterior end of rostral region, inferior view. 



