3. PHOCARCTOS. 15 



1. Cairorhinus nrsinus. Northern Sea-Bear. B.M. 



Phoca ursina, Linn. ; Pander 8r D^ Alton, t. 7. f. 1 (not good). 

 Otaria (Callorhinus) ursina, Peters, 3Ionatsb. 1866, pp. 273 & 672. 

 Otaria Stelleri (part), Lesson Sf Muller. 

 Callorhinus ursinus, Gray, P. Z. S. 1859, p. 359, t. 58 (skull) ; Ann. 



8f Mag. N. H. 1866, xviii. p. 235 j Cat. Seals Sf W. p. 44, f. 16 



(skull) ; Allen, Bull. Mus. Cotnp. Zool. ii. pp. 44 & 73, tab, 2 & 3. 



figs. 1-8. 

 Arctocephalus ursinus, Gill, Proc. Essex Inst. vol. v. 1866, p. 13 (not 



F. Cuvier). 

 Young. Arctocephalus monteriensis, G^r«2/, P. Z. S. 1859, p. 358 (skin 



only). 

 Arctocephalus califomianus, Gray, Cat. Seals Sf Whales, p. 51 (skin 



only). 



Inhab. Kamtschatka. B.M. 



Tribe III. ARCTOCEPHALINA. 



Grinders f . ■§• ; face of the skull shelving in front ; the fifth and 

 sixth grinders behind the front of the zygomatic arch. 



3. PHOCARCTOS. 



The skull elongate, forehead flat. The palate concave, deep, 

 with a thickened margin on 'each side in front, widest in the middle 

 part of the tooth-line, and gradually narrowed behind the teeth ; 

 the internal nares oblong, longer than broad, truncate in front, the 

 front edge in a line with the orbital process of the zygomatic arch. 

 Grinders large, compressed ; the fifth and sixth upper behind the 

 back edge of the zygomatic arch. The grinders have compressed 

 roots ; some of them have a very indistinct longitudinal groove on 

 the side ; the fifth upper grinder has two distinct roots. The ear- 

 bones scarcely prominent, with a flat lower surface. Plap of toes 

 moderate. 



I have not seen an adult skuU of this genus. The skulls described 

 are 10 inches long, but the bones are not knit (see Cat. S. & W. 

 p. 47, f. 17). 



Arctocephalus § II., Gray, Proc. Zool. Soc. 1859, p. 109. 

 Phocarctos, Gray, Ann. Sf Mag. N. If. 1866, vol. xviii. p. 234. 

 Otaria (part.), Alien, Bull. Mm. Comp. Zool. ii. p. 44. 



1. Phocarctos Hookeri. The Southern Hair-Seal. B.M. 



Fur brown-grey, slightly grizzled, pale, nearly white beneath; 

 hairs short, close-pressed, rather slender, flattened, black, with 

 whitish tips, the tips becoming longer on the under part of the 

 sides ; feet reddish or black ; whiskers black or whitish. 



Young pale yellow, varied with darker irregular patches ; length 

 18 inches. B.M. 



Arctocephalus Hookeri, Gray, Zool. Brebtis and Terror, t. 14, 15 



