MERRIAM: THE FAUNA OF RANCHO LA BREA. 



22.3 



3 



._ , ~* 



4 



Figs. 3 and 4. Cams dims Leidy. Skull, no. 10834, X %. Fig. 3, posterior view; fig. 4, inferior view. Raneho 

 La Brea Beds. 



Percentages of width of the skull at various points in relation to basal length measured from 

 the anterior end of the premaxillaries to the posterior side of the occipital condyles are as follows : 



C. dirus(a) C. pambasileus(Z)) C. latrans 

 Width across palate, measured between outer sides of 



superior sectorials 38.1% 34 % 32 % 



Width between most nearly approaching points on 



upper border of orbits 22.7% 20.S% 16.5% 



Width between postorbital processes of frontals 33.3% 27.2% 24 % 



Width across zygomatic arches 62 % 55.6% 59.4% 



(a) No. 10856. All numbers, unless otherwise noted, are from the series of the University of California 

 Collections in Vertebrate Palaeontology. 



(6) No. 984, Univ. Calif. Mus. Vert. Zool. From Susitna River, Mt. MeKinley region. Alaska. This is 

 according to Elliot (Field Columb. Mus. Publ., Zool. ser., vol. 6, p. 374) the largest Recent species of the 

 North American wolves. 



