1902.] Allen, North Pacific P hoc idee. 495 



10. Phoca richardii pribilofensis, subsp. nov. 

 PRIBILOF HARBOR SEAL. 



Phoca, largha ? TRUE, in Jordan's Rep. Fur-seal Islands, Part III, 

 1899, 351 (Pribilof Islands). 



Type, Nat. Mus. No. 49550, ? (?) ad., Pribilof Islands, Alaska; 

 C. H. Townsend. 



The material now at hand affords a rather meager basis 

 for separating the Phoca richardii group into subspecies, al- 

 though its range extends from northern Lower California to 

 the Pribilof Islands. Old skulls, comparable as to age, from 

 the extreme points differ notably in the size of the teeth. As 

 far as the present material goes the dentition appears to be 

 decidedly and uniformly weaker in Alaska specimens than 

 in those from the Puget Sound region, the type locality of 

 Phoca richardii, and the northern form may without doubt 

 be properly recognized subspecifically, on the basis especially 

 of the Pribilof Island skulls. 



An adult female skin (Nat. Mus. No. 82223), from St. Paul 

 Island, collected by Mr. C. H. Townsend, has the under sur- 

 face pale ochraceous, varied with paler streaks, and blotched 

 rather indistinctly with dusky, the spots blacker and more 

 distinct on the throat and sides of the neck; sides paler and 

 more heavily and sharply blotched with blackish. The gen- 

 eral color of the dorsal surface is silvery yellowish white, pro- 

 fusely marked with dark brown and blackish, the spots con- 

 fluent over much of the median dorsal area, especially from 

 the top of the head posteriorly to the middle of the back, 

 over which extensive area the general color is blackish. This 

 coloration, however, is not distinctive, as I have seen quite 

 similar specimens from the Santa Barbara Islands. 



n. Phoca richardii geronimensis, subsp. nov. 

 SAN GERONIMO HARBOR SEAL. 



Type, U. S. Nat. Mus. No. 81520, $ ad., San Geronimo Island, 

 Lower California, Sept. 13, 1896; A. W. Anthony. 



The Lower California and Santa Barbara Islands form, so 

 far as at present represented, is larger than the Pribilof 



