170 SPECIMENS OF PINNIPEDIA. 



Stellers Sea Lion, a more precise definition of the 

 characters of the genus can be given than if the 

 other species are included. 



(1) EUMETOPIAS STELLERI. (Eu. ST.) 



(The Northern or Steller's Sea Lion.) 



Otaria stelleri, Lesson, Diet. Class. Hist. Nat, xiii., 1828. 



Length 10 to 13 feet in the males, 8 to 9 feet in the 

 females. Colour varies with age, light brown or 

 ochre in adult, chestnut brown in young. Deeper 

 than the outer coat of coarse hair is a finer coat, 

 so short as to be easily overlooked. Fifth pair of 

 molars separated by a considerable interval from the 

 fourth pair. North Pacific, from Behring Strait to 

 California and Japan. 



1. Skull, adult male. Length 14| inches in straight line, 



over vertex 19 inches ; breadth 8i inches. Palate 



truncated, moderately concave, 7 4 inches, but not 



reaching the pterygoids. Mandible llh inches long. 



1^ ,.,. .33 11 '55.,," . . 



Dentition : m. ^ ^ , c. y , , p.c. p. _ ; m the upper jaw is 



a big gap between the fourth and fifth post-canine 

 teeth. 

 St Paul's Island, Alaska. 



Donor — Smithsonian Institute. 



(2) EUMETOPIAS CALIFORNIANUS. (Eu. CA.) 

 (Californian Sea Lion, Gillespie's Seal.) 

 Otaria calif ornianus, Lesson, Diet Glass. Hist. Nat, xiii., 1828. 

 Otaria gillespii, M'Bain, Proc. Roy. Phys. Soc. Edin., i., 1858. 

 Zalophus gillespii. Gill, Proc. Essex Inst, v. , 1866. 

 Zalophus calif ornianus, Allen, North American Pinnipeds, 

 1880. 



Length of male 7 to 8 feet, of female 5 to 6 feet; 

 hair short, stifi"; colour varies from brownish yellow 

 to reddish or blackish brown ; high and long sagittal 

 crest. Frequents the coast of California. Type 

 skull described by Dr M'Bain is in the University 

 Anatomical Museum. Gill founded the genus Zal- 

 ophus on M'Bain's description. 



1. Skull, adult male; prominent sagittal crest on dorsum 

 cranii ; facial part more slender, narrower and 

 elongated, and anterior nares more oblique than in 



