50 phocid.t:. 



Arctocephalus lohatus, from Australia ; 



Arctoceplialus Gilliespii, from California, I. c. t. 70 ; 



Callorhinus ursinus, from Behring's Straits, I. c. t. 68 ; 



Arctocephalus nigrescens, from the Falkland Islands ? 



The only one that nearly approaches it in size is that of the very 

 old A)xtoceplialus lohatus from Australia ; but this skull is at once 

 known from that of the Monterey Sea Lion by having a rather deeply 

 concave palate, much narrowed behind, and with a semicii'cular edge 

 to the hinder palatine opening ; while in the Monterey Sea Lion the 

 palate is nearly flat, slightly concave in front, and not so eonti'acted 

 behind, and with a transverse hinder margin to the posterior 

 opening. 



The Monterey species is very distinct from A. Gilliespii, also from 

 California, which, besides being very much smaller (not more than 

 one-third of the size), has a much narrower skull -with a longer face, 

 and a very different form to the hinder palatine opening. 



The Monterey Seal may be the " Lion marin de la Califomie " of 

 Choris, ' Voy. Pittoresque,' t. 11, from which Fhoca Call for niatia of 

 Fischer's ' SjTiopsis Mammalium,' p. 231, and the Otaria Californiana 

 of Lesson have been derived ; but the accounts of the species are so 

 very slight, that there is nothing but the habitat and the name to lead 

 one ; and we already have two very distinct species of Sea Lions, 

 Arctocephalus Montenetisis and A. Gilliespii, from California. 



** Hinder edge of the palate slightly arched, semicircidar. 

 2. Arctocephalus lobatus. 



Face of skull moderately elongate ; palate deeply concave, nar- 

 rowed behind, hinder aperture with a semicircular front edge ; lower 

 jaw rather short, strong; the outer upper cutting-teeth are large 

 and compressed. 



Canines very large, strong, rugulose, thick at the base. Grinders 

 large, with a rugose keel round the inner side of the base ; the first 

 and second with one small lobe ; third, fourth, and fifth grinders 

 with a distinct front and hinder lobe. The flaps to the hind toes 

 short, not so long as the toes. 



Otaria cinerea, Gray, in King, Narrat. Atistralia, ii. 413 ; Griffith''s A. 



K. V. 183 (not Peron ?), 1827. 

 Arctocephalus lobatus, Gray, Spic. Zool. i. t. (skull) ; Bull. Sci. Nat. 



xvi. 113 ; in J. Brookes's Cat. Mus. 37, 1828 ; Cat. Phoc. B.M.U; 



P. Z. S. 1859, 110, 360. 

 Phoca lobata, Fischer, Syn. ii. 574. 

 Otaria Lamairii, J. Midler, Wieym. Arch. 1841, 334. 

 Otaria Stelleri {3Im.Leyden,184o),Fai(n.Jaj)on.t. 21, 22, 23 (animal), 



t. 22. f. 3 (skull). 

 Otaria jubata (part.), Gray, Cat. Osteol. Coll. B.M. 33. 



Tormg covered ^vith soft far, which falls off^ when the next coat 

 of ftir is developed. 



Inhab. N.W. coast of Australia. Houtman's Abrolhos, JJr. Gilbert. 



a-c. Skins of half-grown. Port Essington. 



