32 HAND-LTST OF SEALS, MORSES, 



age of the animal), and it has the fifth griucler well developed, 

 forming a continuous series ; and in the size and form of its cutting- 

 teeth it agrees with Phocarctos. 



** Head elongate ; face short, arched. 



4. CALLORHINUS, Gray, Cat. Seah ^ Whales, p. 44; Sup2^l. 



p. 14. 



1. Calloehinus rRSiNTjs, Gray, Stq:)2^l. Cat. Seals Sf Whales, p, 15. 



Callorhinus ursinus, Allen, Bull. Mm. Comp. Anat. ^- Zool. Harvard, 

 ii. t. 2 & 3. figs. 1-8 (skull). 



Skin of adult. 

 North Pacific. 



Animal, adult male, stuffed. 



Arctocephalus ursinus, Gray, P. Z. S. 1859, p. 103, pi. Ixviii. 

 1221a. Skull of ditto. (PI. XIX.) 



Callorhinus ursinus, Cat. Seals ^' IJlinles, p. 45, fig. 16 (skull). 

 Behring's Straits. 

 Skin of young. 



Arctocephalus monteriensis, Gray, P. Z. S. 1859, p. 358 (not skull). 

 A. califomianus, Gray, Cat. Seals ^- llliales, p. 51 . 

 Monterey, California. 



Ursus marinus, Steller, Nov. Cora. Petrop. ii. p. 331, t. xv., 

 whence Phoca ursma of Schreher, Saugethiere, t. Ixxxii., Pallas, 

 Zool. Ross.-Asiat. i. p. 103, and Schrenck, Amurlande, p. 189 ; 

 the Sea-bear of Forster in Cook's Second Voyage, ii. p. 203 ; the 

 Otirs marin of Buffon and Cuvier ; probably Le chat marin, Kraschen- 

 nenikow. Hist. Kamtsch. i. p. 316, whence Otaria Kraschennemhovii 

 of Lesson. Phoca nigra of Pallas is probably the young of this 

 animal. The skin and skull were described by Gray in the P. Z. S. 

 1859, p. 102, as Callorhhms urshms. 



Mr. Allen, in his paper on the " Eared Seals of the North Pacific," 

 above quoted, figures the skulls of two old males and of a j'oung 

 female, and of another younger, only 35 days old, and the palate o 

 another rather older female. The three youngest skulls have th'd 

 internal nostrils elongate, narrow and acute in front (t. ii. figs. 8, 9, 

 10, t. iii. figs. 1, 2, 3) ; and this form is continued in two figures of 

 older skulls (t. ii. fig. 2, t. iii. fig. 4), but the aperture is represented 

 wider and Avith a rounder front edge in the oldest skiill (t. ii. figs. 

 3&4). 



*** Head broad. 



5. ARCTOCEPHALUS, Gray, Cat. Seals ^ Whales, p. 47 ; Suppl. 



p. 17. 



Skull broad behind, tapering in front ; palate narrow. The sixth 

 upper grinder quite behind the hinder edge of the zygomatic arch. 



