138 



BULLETIN 100, UNITED STATES NATIONAL MUSEUM. 



ture not recorded, and D5318, China Sea, vicinity Formosa, 340 

 fathoms (622 meters), bottom temperature not recorded. 



Bolivina aenariensis — Material examined. 



BOLIVINA PUSILL.i Schwager. 



Bolivina pusiVia Schwager, Novara-Ex-ped., Geol. Theil., pt. 2, 18G6, p. 254, pi. 7, 

 fig. 101.— CusHMAN, Bull. 71, U. S. Nat. Mus.. pt. 2, 1911, p. 41. fig. 67 (in 

 text). 



This is one of the species described by Schwager from Kar Nicobar, 

 so many of which are found in this general region. I have noted it 

 from the North Pacific and from off the Hawaiian Islands and near 

 Japan in fairly deep water. The only Philippine material is from 

 Albatross station D5G55, Gulf of Boni, 608 fathoms (1,112 meters). 



Bolivina pusilla — Material examined. 



Genus PLEUROSTOMELLA Reuss, 1860. 



PLEUROSTOMELLA ALTEKNANS Scl.wager. 



Pleurostomella alternans Schwager, Novara-Exped., Geol. Theil., vol. 2, 1866, 

 p. 238, pi. 6, figs. 79, 80.— H. B. Brady, Rep. Voy. Challenger, Zoology, vol. 9, 

 1884, p. 412, pi. 51, figs. 22, 23.— Cushman, Bull. 71, U. S. Nat. Mus., pt. 2, 

 1911, p. 50, fig. 81 (in text). 



The only station at which this species occurred in the region is 

 Albatross station D5236, in 494 fathoms (903 meters), in the Pacific 

 Ocean, east coast of Mindanao, bottom temperature 41.2° F. (5.1° C). 

 The material was typical. The only other record for the North 

 Pacific is an Albatross station, D2806, off the Galapagos Islands. 

 This Philippine record, therefore, greatly extends its known distri- 

 bution in this ocean. 



The Challenger stations were from the Ki Islands off New Guinea 

 in 129 fathoms (236 meters) and a station south of the Low Archi- 

 pelago in 2,075 fathoms (3,795 meters). Sidebottom records a single 



