S2 PHOcroiE. 



to say, in a series of skulls of different ages from tlie young to the 

 adult, of a Seal of the allied genus Otaria (0. leonina). 



The skin is so like that of Arctocephalus nigrescens, that we were 

 induced tp regard it as a second specimen of that species before we re- 

 ceived the skuU. But the skuU of the original specimen of that Seal 

 shows that the adult animal and skull are not nearly half the size of 

 the animal and skull of the Loho marino of Monterey. 



4. Arctocephalus nigrescens. 

 SkuU broad ; face rather elongate ; palate slightly concave, flat 

 behind, hinder aperture narrow, with a nearly straight hinder edge. 



Arctocephalus nigrescens, Gfraj/, Zool. Erehus Sr Terror, t. , f. , 

 skull (inedit.) ; P. Z. S. 1859, 107 & 360. 



Inhab. Falkland Islands ? 



a. SkuU from a half-grown specimen. 



This skuU is very like that of A. Delalandii, but differs consider- 

 ably in the form of the front edge of the hinder palatine aperture ; 

 the outer cutting-teeth and the canines are moderately slender, and 

 simUar in form, but the latter are much the larger. 



*** Hinder edge of the palate contracted, ovate. 



5. Arctocephalus Delalandii. 



Face of skuU rather short ; forehead flattened from nasal bone to 

 the vertex ; palate concave, hinder aperture narrow, with a rather 

 acute, ovate anterior edge; teeth large; lower jaw rather short, 

 strong. Hair rigid, under-fur smaU in quantity, reddish brown. 



Arctoceplialus Delalandii, Gray, P. Z. <S. 1859, 107. t. 69 (skuU), p. 869. 

 Otaria Peronii, A. Smith, S. Afr, Quart. Journ. ii. 63. 



APUI.T. 



Otaria Delalandii, F. Cuvier, Diet. Sei. Nat. xxxix. 423 : Cuvier, Oss. 



Foss. V. 220. 1. 18. f. 15 (skuU). 

 Phoca pusilla (part.), Mscher, Syn. Mamm. 232. 



JUNIOB P 



Le petit Phoque, Buffon, Hist. Nat. xiii. 341. t. 53. 



Little Seal, Penn. Quad. 243, from Buffon. 



Phoca parva, Bodd. Blench. 78, from Buffon. 



Phoca pusilla, Schreb. Sdttgeth. 314. t. 85, from Buffon. 



Otaria pusilla, I)esm. N. Diet. xxv. 600. 



Otaria.Peronii, Desm. Mamm. 250, 382; Micyc. MHhod. t. 111. f. 2, 



from Buffon. 

 Loup mann, Pagia, Voy. aut. du Monde, ii. 32. 



Inhab. Cape of Good Hope. 



a. Adult ! stuffed. Cape of Good Hope. 

 h. SkuUs ; adult. Cape of Good Hope. 



f, Skin of young with the under-fur dark brown. Cape of Good 

 Hope ? 



