FORAMINIFERA OF THE NORTH PACIFIC OCEAN. 63 



Distribution. — The only definitely recorded station for this species 

 in the North Pacific seems to be that given by Bagg, Albatross 

 H4508 in 495 fathoms off the Hawaiian Islands. I have found the 

 species in the material which I have examined only from one station, 

 Albatross D4874, in 66 fathoms off Japan. This is the station at 

 which numerous other tropical species occur, such as Truncatulina 

 prsecincta and T. margaritifera. 



PULVINULINA KARSTENI (Reuss). 

 Plate 2G, fig. 1. 



Rotalia karsteni Reuss, Zeitschr. deutsch. geol. Ges., vol. 7, 1855, p. 273, pi. 9, 

 fig. 6. 



Pulvinulina karsteni H. B. Brady, Trans. Linn. Soc, vol. 24, 1864, p. 470, pi. 

 48, fig. 15; Ann. Mag. Nat. Hist., ser. 5, vol. 1, 1878, p. 436, pi. 21, fig. lla-c; 

 Rep. Voy. Challenger, Zoology, vol. 9, 1884, p. 698, pi. 105, fig. 8, 9 — 

 Sherborn and Chapman, Journ. Roy. Micr. Soc, 1886, p. 758, pi. 16, 

 fig. 21a-c— Flint, Rep. U. S. Nat. Mus., 1897 (1899), p. 330, pi. 74, fig. 5 — 

 Sidebottom, Mem. and Proc. Manchester Lit. and Philos. Soc, vol. 53, 

 No. 21, 1909, p. 7, pi. 3, fig. 7. 



Pulvinulina repanda, var. karsteni Parker and Jones, Philos. Trans., vol. 155, 

 1865, p. 396, pi. 14, figs. 14, 15, 17; pi. 16, figs. 38-40. 



Description. — Test almost equally biconvex, the dorsal side slightly 

 more conical, the ventral side rather more broadly rounded; periph- 

 eral margin carinate, bluntly rounded; chambers numerous, about 

 five to seven in the last formed whorl; sutures curved, slightly if at 

 all depressed above, below more compressed; wall finely punctate; 

 aperture a narrow slit extending from the umbilical end of the 

 chamber to the peripheral margin. 



Diameter 0.3 to 0.6 mm. 



Distribution. — Apparently this species has not previously been 

 recorded from the North Pacific. I have material from but two 

 stations in western Pacific Albatross D4822 in 130 fathoms and Nero 

 1065 in 1,321 fathoms. 



PULVINULINA ELEGANS (d'Orbigny). 

 Plate 26, fig. 3. 



Rotalia (Turbinulina) elegans d'Orbigny, Ann. Sci. Nat., vol. 7, 1826, p. 276, 

 No. 54. 



Pulvinulina elegans Jones and Parker, Geologist, vol. 7, 1864, p. 88. — Parker, 

 Jones, and H. B. Brady, Ann. Mag. Nat. Hist., ser. 4, vol. 8, 1871, p. 174, 

 pi. 12, fig. 142.— H. B. Brady, Rep. Voy. Challenger, Zoology, vol. 9, 1884, 

 p. 699, pi. 105, figs. 4-6. — H. B. Brady, Parker, and Jones, Trans. Zool. 

 Soc London, vol. 12, 1888, p. 228, pi. 46, fig. 2. — Sherborn and Chapman, 

 Journ. Roy. Micr. Soc, 1889, p. 489, pi. 11, fig. 30-32.— Egger, Abh. kon. 

 bay. Akad. Wiss. Miinchen, CI. n, vol. 18, 1893, p. 410, pi. 18, figs. 37-39.— 

 Fornasini, Mem. Accad. Sci. Inst. Bologna, ser. 5, vol. 3, 1893, p. 435, 

 pi. 2, fig. 18.— Goes, Kongl. Svensk. Vet. Akad. Handl., vol. 25, No. 9, 

 1894, p. 97, pi. 16, fig. 808; Bull. Mus. Comp. Zool., vol. 29, 1896, p. 76.— 

 Chapman, Journ. Roy. Micr. Soc, 1898, p. 6, pi. 1, fig. 8.— Flint, Rep. 

 U. S. Nat. Mus., 1897 (1899), p. 331, pi. 75, fig. 1.— Millett, Journ. Roy. 



