46 BULLETIN 71, UNITED STATES NATIONAL MUSEUM. 



Description. — Test fusiform, quinqueloculine; one and one-half 

 times as long as wide; chambers prominently triangular in trans- 

 verse section, the peripheral margin bluntly angular, wall smooth; 

 sutures not greatly depressed; apertural end somewhat produced 

 to form a short contracted neck, nearly circular in section with a 

 thickened lip and short simple tooth. 



Length, usually less than 1 mm., one specimen nearly 2 mm. in 

 length. 



Distribution. — All the material I have had of this species in the 

 North Pacific is from the region of the Hawaiian Islands, from three 

 different sets of dredgings — Albatross H2922 in 268 fathoms, Nero 

 2034 in 175 fathoms, 2071 in 271 fathoms, and Tuscarora y 2 , in 206 

 fathoms, latitude 21° 10' N.; longitude 158° 04' W. 



As a rule this species seems to be found in water of considerable 

 depth and here it was not found in the shallow water of the same 

 region. Brady records it from the North Pacific but without station. 



QUINQUELOCULINA VULGARIS d'Orbigny. 



Plate 11, fig. 3. 



Quinqueloculina vulgaris d'Orbigny, Ann. Sci. Nat., vol. 7, 182&, p. 302, No. 

 33. — Schlumberger, M<kn. Soc. Zool. France, 1893, p. 207, text figs. 13, 

 14, pi. 2, figs. 65, 66. 



Description. — Test short and stout, about as long as wide, in front 

 view orbicular, chambers in transverse section roughly triangular, 

 the periphery bluntly angled, sides straight or slightly convex; 

 sutures distinct, wall smooth; apertural end not contracted or pro- 

 duced; aperture elongate, narrow, with a tooth bifid at the tip, in 

 front view projecting slightly above the border of the aperture. 



Length, averaging about 0.75 mm. 



Distribution. — This has seemed to be one of the most common 

 species of this genus in the North Pacific, being found about the 

 Hawaiian Islands, off Midway Island, off Guam, and at numerous 

 points about Japan and between Guam and Japan in the Nero material 

 especially. 



QUINQUELOCULINA AUBERIANA d'Orbigny. 



Plate 12, fig. 1. 



Quinqueloculina auberiana d'Orbigny, in De la Sagra, Hist. Fis. Pol. Nat. Cuba, 



1839, "Foraminiferes" p. 167, pi. 12, figs. 1-3. 

 Miliolina auberiana H. B. Brady, Rep. Voy. Challenger, Zoology, vol. 9, 1884, 



p. 162, pi. 5, figs. 8, 9. — Goes, Kongl. Svensk. Vet.-Akad. Handl., vol. 25, 



1894, p. 109, pi. 19, fig. 8tea-d. 



Description. — Test in front view oval, nearly as broad as long, in 

 end view roughly triangular, quinqueloculine; chambers stout, 

 roughly triangular in section, the periphery acutely angled, sides 

 convex; apertural end very slightly produced, neck not visibly con- 



