FOKAMINIFERA OF THE NORTH PACIFIC OCEAN. 21 



Distribution. — Brady in the Challenger Report records this species 

 from five stations in the North Pacific, the depths ranging from 345 

 to 2,750 fathoms. Picaglia records it from two stations of the 

 Vettor Pisani and Bagg records it from seven Albatross stations in the 

 vicinity of the Hawaiian Islands at depths ranging from 495 to 1 ,398 

 fathoms. 



I have had numerous specimens of this species, notably from the 

 Nero soundings from off the Hawaiian Islands and especially along 

 the line of Nero soundings between Guam and Yokohama. These 

 stations average about 1,500 fathoms, the shallowest being 392 and 

 the deepest 1,660 fathoms, but two stations however were less than 

 a thousand fathoms in depth. As a rule but very few specimens were 

 present in the material from any one station in contrast to P. obliqui- 

 loculata which is often present in great numbers. 



This species is one of the smallest of the family and one which 

 may be overlooked on account of its size, but its other characters are 

 such as to easily distinguish it. 



PULLENIA QUINQUELOBA (Reuss). 

 Plate 13, fig. 2. 



Nonionina quinqueloba Reuss, Zeitschr. deutsch. geol. Ges., vol. 3, 1851, p. 47, 

 pi. 5, figs. 31a, b. 



Pullenia quinqueloba H. B. Brady, Proc. Roy. Soc. Edinburgh, vol. 11, 1882, 

 p. 712; Rep. Voy. Challenger, Zoology, vol. 9, 1884, p. 617, pi. 84, figs. 14, 

 15. — Balkwill and Wright, Trans. Roy. Irish Acad., vol. 28 (Sci.), 1885, 

 p. 348, pi. 12, figs. 29a, 6.— H. B. Brady, Parker, and Jones, Trans. Zool. 

 Soc, vol. 12, 1888, p. 226, pi. 43, figs. 22, 23.— Sherborn and Chapman, 

 Journ. Roy. Micr. Soc, 1889, p. 487, pi. 11, fig. 29.— Egger, Abh. kon. 

 bay. Akad. Wiss. Miinchen, CI. n, vol. 18, 1893, p. 373, pi. 19, figs. 28, 

 29.— Goes, Kongl. Svensk. Vet. Akad. Handl., vol. 25, 1894, p. 87, pl. 14, 

 fig. 773; Bull. Mus. Comp. Zool., vol. 29, 1896, p. 68.— Flint, Rep. U. S. 

 Nat. Mus., 1897 (1899), p. 324, pl. 70, fig. 5. 



Pullenia sphxroides (part) Parker and Jones, Philos. Trans., vol. 155, 1865, 

 p. 368, pl. 17, fig. 53. 



Description. — Test bilaterally symmetrical, biconvex, composed of 

 numerous chambers arranged in an involute coil, five chambers usually 

 being present in each coil, compressed laterally, peripheral edge 

 broadly rounded; surface smooth, sutures somewhat compressed; 

 aperture a long, narrow, curved slit at the base of the inner face of 

 the chamber. 



Diameter, 0.50-0.75 mm. 



Distribution.— This species seems to be the least common of the 

 three. Brady records it from two Challenger stations in the North 

 Pacific, 224 in 1,850 fathoms and 241 in 2,300 fathoms. Goes records 

 it from the western Pacific in 1,100-1,200 fathoms. I have had it 

 from several stations, off the Galapagos Islands, in 1,379 fathoms, off 



