40 BULLETIN OF THE 



known, two of which (Enmetopias Stelleri and Zalophus Gillespii) are 

 northern, and two {Otaria jubata and Zalophus lubatus*) are southern. 

 A fifth species {Otaria Hbokeri), also southern, is likewise commonly 

 recognized. But it appears to be known only from specimens in the 

 British Museuimf collected many years since at the Falkland Islands, 

 and does not seem to have been met with by recent collectors, either at 

 the Falklands or elsewhere. It differs from the O.jubata, judging from 

 the figures and the not wholly satisfactory descriptions we have of it, 

 mainly in having the palatal bones less produced posteriorly; at least 

 this is the difference that has been chiefly dwelt on as distinguishing the 

 two, although certain differences in the color of the under-side of the 

 body have also been mentioned. The skull figured by Gray is evidently 

 that of a middle-aged or rather young animal. The form of the bony 

 palate corresponds also with what is seen in middle-aged and young spe- 

 cimens of other hair seals. Having seen apparently as great differ- 

 ences in specimens of the northern species, unquestionably specifically 

 identical, as exists between O.jubata and 0. Huoleri, I am led to ques- 

 tion whether the specimens described as Otaria \_Phocarctos~] Ilooheri 

 may not be an unusual state of Otaria jubata, the only hair seal now 

 known to exist in the Falkland Islands; the difference resulting partly 

 from age and partly from abnormal development. Not having seen spe- 

 cimens of the 0. Hbokeri, I do not presume to assume it to be-referable 

 to O.jubata ; my design by this reference is mainly to call attention to 

 its somewhat doubtful character. 



Two genera of fur seals are also commonly recognized. One of these 

 genera consists of the Callor//inus ursinus, or the fur seal of the North. 

 The other genus embraces numerous nominal species, all but one of 

 which have been referred by Peters, and also by Gray in his later 

 papers, to three species, all of which have a southern distribution. 



* Peron, under the name Otaria cinerea (Voy. mix Terr, austr., Tome II, pp. 54, 77), 

 undoubtedly referred to the so-called Zalophus lubatus of recent writers. Although his 

 description is rather meagre, the size given, as well as the character of the hair, ami 

 •• pei i'u'. the context (at p. 77), render it clear that he must have intended to indicate 

 by this name the species mure fully described later by other writers. Pe'ron's name 

 was at first used by Gray to designate what he has since called lob tins. Although 

 there i> little reason to doubt that PeYon's earlier name of cinerea refers to this species, 

 it is perhaps not advisable to substitute for a well-established name one of possibly 

 doubtful application. 



t See Catalogues of the British Museum (Seals, 1850, p. 45; Seals and Whales, 1S66, 



p. 54; B !S of Mammalia, p. 110, etc.)- 



