72 MUSEUM OF COMPARATIVE ZOOLOGY. 



Stelleri. He also omitted to state distinctly the localities at which the 

 specimens figured were obtained, though they were doubtless from Japan. 



As already remarked under Eumelopias Stelleri, naturalists for a long 

 time referred the specimens figured by Schlegel under the name Otaria 

 Stelleri to two widely distinct species, namely, 0. lobata {Zalophus 

 lobatus) and 0. cinerea (Arctocephalus cinereus). It was only four 

 years since that Professor Peters, after examining the specimens fig- 

 ured in the Fauna Japonica, was able to determine the real character 

 of Schlegel's 0. Stelleri, which he found referable to the 0. Gillespii 

 McBain. As previously stated, I see no reason to question the correct- 

 ness of this identification. The skull represented in Figures 5 and G, 

 Plate XXII, is said to be that of a young female ; the great propor- 

 tional differences apparent between this and the other specimens figured 

 are only such as might result from age. 



The references to this species are very few. The first, aside from 

 Schlegel's above-cited work, is the description of a skull from Cal- 

 ifornia by McBain, in which the animal in question was first indi- 

 dicated as a distinct species. This skull was described in 1858, and 

 was the basis of McBain's species 0. Gillespii. In the following year 

 Dr. Gray published a figure of a cast of this skull, and re-described the 

 species from the cast, under the generic name of Arctocephalus. Dr. 

 Gill having seen other skulls, and noticing the striking differences ex- 

 isting between this and the other forms, in his " Prodrome" he proposed 

 for this species the generic name of Zalophus. 



The only species with which Zalophus Gillespii seems to be at all 

 closely related is its congener the Z. lobatus, with which, as stated 

 above, it was supposed by Schlegel to be identical, and to which it was 

 in part or wholly referred by later writers. The two are of nearly the 

 same size, and seem to have, in general, similar external features. Ac- 

 cording to Peters and Gray they differ, however, in the form of the 

 teeth and in respect to some of the features of the skull. 



Distribution and Habits. — The only localities from which this 

 species is at present certainly known, are California and Japan, but 

 it doubtless inhabits the intermediate shores of the Pacific. Mr. W. II. 

 Dall informs me, however, that lie is confident that there is only one 

 species of " eared sea lion in Behring's Sea." He affirms most posi- 

 tively that " there is no Zalophus there, or at San Francisco," the spe- 

 cies frequenting the rocks in the harbor of that name being the Eu- 



