FIELD BOOK OF MAMMALS 



Genus Eumetopias 



Steller Sea-lion; Northern Sea.-\ion.— Eumetopias jubata 



(Schreber). . 



Externally very much like Zalophus cahformanus but 

 larger in size and distinguished by dental characters such as 

 a noticeable space between molar and premolars; occipital 

 crest of males not greatly developed. Color yellowish 

 brown to dark brown. Estimated weight of average male, 

 1 500- 1 800 -pounds. Found from Bering Straits south to 

 Farallon Islands, Cahfornia. 



^. ***** * 



Sea-lions are the commonest Seals along the Pacific Coast. 

 Along the shores of California, Oregon, Washington, and 

 British Columbia they outnumber the other pinnipeds, and 

 on the score of size and color are easily distinguished from the 

 other Seals. 



The California Sea-lion is a common sight off the rocks 

 and beaches of California, while farther north this genus is 

 replaced by the Steller Sea-lion which is also abundant and 

 easily noted. Where Sea-lions are not molested they are 

 rather trusting and unsuspicious in the water, loafing on the 

 surface within stone's throw of man or swimming quite close if 

 one remains motionless. They are not so trusting when 

 drawn out on the shore and usually make for the water at the 

 first sign of danger. 



Sea-lions have but a single pup at a birth. 



Genus Callorhinus 



Dentition: Incisors, f; Canines, {; Premolars, f; Molars, 

 \ or 1 = 34 or 36. 



Alaska Fur Seal.— Callorhinus alascanus Jordan 

 and Clark 



Names.— Alaska Fur Seal; Northern Fur Seal; Sea-bear. 



General Description.— Seals of medium size with abundant, 

 soft underfur; rostrum short, wide, convex in profile; occipital 

 crest not greatly developed; males much larger than females. 

 Pelage composed of dense, soft underfur, hidden by longer, 

 coarser hairs; underfur light yellowish brown. 



Color.— Sexes differently colored. 

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