50 PHOCID^, 



Arctocephalus lobatus, from Australia ; 



Arctoeephalus Qilliespii, from California, I. c. t, 70 ; 



CdUorhinus wsinus, from Behring's Straits, I. c. t. 68 ; 



Arctocephalus nigreseens, from the Palkland Islands ? 



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

 old Arctocephalus lobatus from Australia ; hut 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 semicircular edge 

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

 palate is nearly flat, slightly concave in front, and not so contracted 

 behind, and with a transverse hinder margin to the posterior 

 opening. 



The Monterey species is very distinct from A. Qilliespii, 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 Phoca Californiana of 

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

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

 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 Monteriensis and A. Qilliespii, from California. 



** Hinder edge ofthepcdate slightly arched, semicireidar. 

 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 j the outer upper cutting-teeth are large 

 and compressed. 



Canines very large, strong, mgulose, 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, Ctray, in King, Narrat. Australia, ii. 413 : Griffith's A. 



K. V. 183 (not P4ron ?), 1827. 

 Arctocephalus lobatus, Gray, Spic. Zo'ol. i. t. (skull) ; BuU. Sci. Nat. 



xvi. 113 ; in J. JBroohes's Cat. Mus. 37, 1828 ; C<a. Phoc. B.M.U; 



P. Z. S. 1869, 110, 360. 

 Phoca lobata, Fischer, Syn. ii. 574. 

 Otaria Lamairii, J. MiiUer, Wiegm. Arch. 1841, 334. 

 Otaria SteUeri (Mus. Leyden,18i5), Faun. Japan, t. 21, 22, 23 (animal), 



t. 22. f. 3 (skull). 

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



Young covered with soft fur, which falls off when the next coat 

 of fur is developed. 



Inhab. IT.W. coast of Australia. Houtman's Abrolhos, Mr. Gilbert, 

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



