11 



it Otaria GiUiexpii. I have figured the skulls of these 

 three animals from the North Pacific, P.Z.S., 1859, under 

 the names of, 1. CaUorhinus ursinus, P.Z.S., 1859, t. 58. 

 ■1. FArnutopias Stelle.ri, P.Z.S., 1859, t. 72. 3. Zalophus 

 CiUiespii, P.Z.S., 1 859, t. 70. Mr. Allen has given a further 

 iicc'ount of these animals, and I have figured and described 

 a fourth sjiecies under the name of E umetopias dongata, 

 P.Z.S., 1872, 738, fs. 2 and 3, but the examination of a 

 second specimen of a skull has shown ine that it is more 

 like a Phocarctus than a Eumetopias. 



Gypsophoca, Gray. 

 Proc. Zool. Soc, 1872, ^j9. 659 and 743. 



The palate short, contracted behind ; the opening of the 

 inner nostrils on a level with the middle of the zygomatic 

 arch. The grinders f;| the fifth and sixth upper quite 

 behind the front edge of the zygomatic arch. 



Gypsophoca tropicalis. The Sub-tropical Fur Seal. 



Gypsophoca tropicalis. Gray, P.Z.S., 1872, ;). 659, fs. 5 

 and 6 (.skull). 



Arctocephalus cinereus, Gray, Cat. Scah & Whales, p. 56 ; 

 Siippl.,p. 24; Ann. & Mag. Nat. Hist., 1866, xviii., j7. 236. 



Black, grey lieneath, under fur abundant, reddish brown. 



Inhab. N. Australia {MacGiUivray). 



Dr. Peters describes a Fur Seal, in the British Museum, 

 sent from Juan Fernandez Island, under the name of 

 Ardophoca P/ii/.ippii, Peters, Monatsb. May, 1866, pp. 276 

 and 671, t. 2 (skull), and I have noticed it, in the Suppl. 

 Cat. Seals & Whales as the Chilian Fur Seal, but have 

 never seen the skull on which it is described, and have a 

 suspicion that it represents a species of Gypsophoca that has 

 lost its hinder grinders. 



Dr. Philippi sent a description of a skull that he had 

 received from the Island of Massafuera, on the west coast 

 of S. America, which is published by Dr. Peters, Monatsb., 

 1871, p. 588, 1. 1 and 2, which he calls Ardophoca argentata. 

 The skull wants the hinder part of the brain case, has six 

 grinders in its upper jaw, and is in every respect very like 

 the skull of Gypsoplwca tropicalis, and the Ardophoca 

 Philippii from Juan Fernandez. It chiefly differs from the 

 figure of the latter skull, as Dr. Philippi shows in his 

 ])iate, in the hinder portion of it being narrower, and the 

 condyles much shorter or rather narrower. 



These three skulls appear to me to belong to one group, 

 but whether they are three distinct species, two from the 

 west coast of South Ajnerica, and one from North Australia, 

 I will not attempt to determine, as I have seen only the 

 skins and skull of the one from the latter region, but they 

 :ue all Fur Seals, and may be distinct. 



Phocarctos, Gray. 



A..& M. N. H., 1866, xviii., 234 ; Suppl. Cat. Seals and 

 Whales, 13. 



Skull elongate ; face rather produced in front ; palate 

 short, contracted behind, the inner nostrils in a line with 



the middle of the zygomatic arch. Grinders ^:f, with 

 compressed lobed crown.s, the sixth upper behind the 

 back edge of the front of the zygomatic arch, and the fifth 

 even with it. Under fur none, or very sparse. 



Phocarctos Hookeri. The Southern Hair Seal. 



Arctocephalus Hookeri, Grcty, Cat. Seals, Brit. Mus., 45, 

 /, 15 (skull) ; Cat. Seals & Whales, 53,/. 17 (skuD). 



Hair Seal, Wcddell, Voy., 141. 



Pale yellowish, flaps of hinder toes elongate, unequal. 



Inhab. Falkland Islands. Cape Horn. 



Plate 14. Drawing of animal from a stuffed skin. 

 Plate 15, its skull. 



Arctocephalus. 



Skull rather broad, oblong. Palate contracted behind ; 

 the opening of the inner nostrils in a line with about the 

 middle of the zygomatic arch. Grinders |;f , the crown of 

 the upper compressed, slightly lobed, of the lower ones 

 broad, slightly lobed. The sixth upper behind and the 

 fifth level with the back edge of the front of the zygomatic 

 arch. Under fur moderately developed. 



Grinders of the upper jaw compressed, with an elongate 

 triangular central crown, with a collaret on the inner side, 

 and a small lobe on the back and often on the front of the 

 collaret. 



The form of the crowns of the lower gi-inders is very 

 peculiar and characteristic ; having only two skulls of 

 adult animals in the British Museum it had, until lately, 

 escaped my observation, as the crowns of these skulls were 

 mostly broken off or chipped, but on very minute examina- 

 tion I find the crowns of two or three teeth of one of the 

 specimens are perfect, and present a decided difference of 

 structure from that of all the other species of Sea Bears. 



Arctocephalus antarcticus. The Cape Fur Seal. 



Phoca antarctica, Thunh., Mem. Petrop. iii., 322. 



Phoca ursina, Cuv., Oss. Foss. 



Arctocephalus ursinus, F. Cuv., Mem. Mus. xi., 205, tab. 15, 

 no. 1 (skull). 



Arctocephalus Delalandii, Gray, P.Z.S., 1859, tab. 60 

 (skuU). 



Inhab. Cape of Good Hope. 



EUOTARL^. 



Arctocephalus ** Euotaria, Gray, Suppl. Cat. S. & W., 20. 



Skull rather broad oblong. Palate contracted behind, 

 the opening of the inner nostrils in a line with about the 

 middle of the zygomatic arch. Grinders ^:f , tlie upper and 

 lower with a compressed elongated triangular central 

 crown with a small lobe on its back, and often on its front 

 edge. The sixth upper behind, and the fifth even with the 

 back edge of the front of the zygomatic arch. 



Euotaria schisthypero>;s. Turner. 

 Arctocephalus schisthvperoiis. Turner, Journ.Anat., 1868, 

 113,/. (.skull). 



