544 



THE FUR SEALS OF THE PRIBILOF ISLANDS. 



Commander Islands, Bering Sea.' 



FAUNAL SUMMARY. 



n„+^i,I^i"o''i?°'Uj'"? **Jl'® S':?™ by me in Proc. U. S. Nat. Mus. for 1886. Eeport on Bering Island MoUusca, pp. 217, 218, 

 October, 1886. Cf. also these Proceedings for 1884, pp. 340-349. u ^uiiuoi,ii, i,p. -i , , ^^o, 



■fT®'S™*''i?P''l'S'^'^^ P''®P*™'i ''?"••'>'"»•■'<«' lias appeared (Proc. Mai. Sor , of London III d 205 Mar 1899) on 

 fi„Zl^°^^™^u *™'?J«™S. Sea by Mr. Edgar A. Smith, of the British Muaenm. Tl.pse were collected liv Mr'.'G. E. H. 

 Jiarrett-Hamilton of the Bering Sea Commission, at the Commander Islands. They comprise (1) a species of Ommatostrephes 



ut^rsX?u=5''S"th^rp'?ij?i:i?aTd"^^^^^^ -"^- '^'^ * - ''-- ^>- ^™" '"« 



FOSSIL MOLLUSKS OF ST. PAUL ISLAND. 



The only molluscan fossils known in the group come from St. Paul Island, and I 

 have added an extract from my geological report on the Tertiary coals of Alaska 

 (Eeport on Goal and Lignite of Alaska, 17th Ann. Eep. U. S. Geol. Survey, 1886), which 

 summarizes all that is known of them up to the present time. 



On the eastern side of tlie point which forms the southeastern extreme of the island is a bluff or 

 crag known as Black Bluff, which, according to the observations of Wossuessenski in 1847^8, 

 IS composed of horizontal layers of a hard claystone, with others in which lime preponderates, 

 forming a pale gray, fine-grained, clayey limestone, or in which a conglomerate of pebbles of volcanic 

 origin is bound together in a limy matrix.' Over these aro layers of black or brown volcanic breccia 

 and vesicular lava. These bluffs rise abruptly to a height of 60 to 80 feet above the sea at their base. 



' Grewingk, Beitrag, p. 190. 



