238 



MEMOIRS OP THE UNIVERSITY OP CALIFORNIA. 



anges have stout, gently curved claw-cores, and are extended inf eriorly as strong 

 subungular processes. 



Posterior Arch and Limbs. — The pelvic arch is closely similar to that of 

 the timber wolves. In the posterior extremities the femur (fig. 18) varies 

 considerably in the weight of the shaft, being in some cases heavier than in 

 the timber wolves. The tibia is commonly very massive. In the femur the 

 greater trochanter is always large in adult animals, and may project upward 

 to a point almost level with the proximal side of the head. The smaller troch- 



18 



20 



K 



Fig. 18. Cants dims Leidy. Femur, posterior view, no. 10540. X V-. Rancho La Brea Beds. 

 Pigs. 1!) to 21. Cam's dints Leidy. Tibia, no. 194S2. X '-. Fig. 19. "anterior side; fig. 20, medial view; fig. 21, 

 superior view. Rancho La Brea Beds. 



