CANIS OCCIDENTALS FURLONGI Merriam, J. C. 

 Text figures 32a to 33 & 



Canis occidentalis furlongi Merriam, J. C. Univ. Calif. Publ. Bull. Dept. GeoL, vol. 5, p. 393, 

 1910. 



There are in the collections from Rancho La Brea several fragmentary 

 spechnens representing a wolf species near Canis occidentalis. One of these 

 specimens was made the type of a new subspecies in the publication cited 

 above. The type material of the Rancho La Brea form when compared with 

 typical C. occidentalis exhibits a tendency to relative narrowness of the nose, 

 the superior carnassial tends to be relatively massive, and the second upper 

 molar seems relatively narrow anteroposteriorly. 



The Rancho La Brea specimens originally referred to C. occidentalis fur- 



32a 



32b 



32c 



Figs. 32a to 32c. Canis occidentalis furlongi Merriam, J. C. No. 11283. Fig. 32a, portion of the skull with 

 dentition, inferior aspect, X %; fig. 326, M 1 and M 2 , occlusal view, natural size; fig. 32c, portion of lower 

 jaw with molars, X x /». Rancho La Brea Beds. 



longi differ from C. dims particularly in the form of M 1 (figs. o2a and 326). 

 This tooth is relatively wide transversely, the inner lobe is relatively narrow 

 anteroposteriorly, and the hypocone is relatively large. The hypocone has 

 approximately the size and form seen in average specimens of wolves in the 

 C. occidentalis group, and as in that species the anterior end of the hypocone 

 ridge swings forward around the anterior side of the protocone instead of 

 being interrupted as in G. dirus. 



[251] 



