56 BULLETIN" 11, UNITED STATES NATIONAL MUSEUM. 



PULVINULINA TUMIDA H. B. Brady. 



Plate 22, fig. 3. 



Pulvinulina menardii d'Orbigny, var. tumida H. B. Brady, Geog. Mag., vol. 4, 

 1877 p. 294; Quart. Journ. Micr. Sci., vol. 19, 1879, p. 80.— Bagg, Proc. 

 U. S. Nat. Mus., vol. 34, 1908, p. 163. 



Pulvinulina tumida H. B. Brady, Rep. Voy. Challenger, Zoology, vol. 9, 1884, 

 p. 692, pi. 103, figs. 4-6. — Egger, Abh. kon. bay. Akad. Wiss. Miinchen, 

 CI. ii, vol. 18, 1893, p. 414, pi. 17, figs. 4-6, 35-37, 44.— Flint, Rep. U. S. 

 Nat. Mus., 1897 (1899), p. 329, pi. 73, fig. 5.— Millett, Journ. Roy. Micr. Soc., 

 1904, p. 499.— Cushman, Proc. Boston Soc. Nat. Hist., vol. 34, 1908, p. 31 — 

 Chapman, Journ. Linn. Soc, Zoology, vol. 30, 1910, p. 422. 



Description. — Test biconvex, oval, dorsal surface convex especially 

 in the early portion, ventral side less convex, umbilicate; peripheral 

 margin rounded, becoming more acute in the later formed portion 

 with a rounded carina; chambers fairly numerous, about six in the 

 last-formed whorl; sutures curved, depressed on the ventral side; 

 wall of the early portion of the test granular, later chambers becoming 

 progressively smoother; aperture an arched opening near the um- 

 bilical end of the margin of the chamber, often with a slight valvular 

 projection above. 



Diameter up to 1.25 mm. 



Distribution. — Brady records Pulvinulina tuwAda from two Chal- 

 lenger stations in the North Pacific at depths of 500 and 1,850 fathoms. 

 Picaglia records it from three stations of the Vettor Pisani in the same 

 area. Bagg records it from 13 out of the 19 stations in the vicinity 

 of the Hawaiian Islands from which he had material, depths ranging 

 from 104 to 1,544 fathoms. I have had specimens from several sta- 

 tions off the Hawaiian Islands at depths varying from 1,265 to 2,615 

 fathoms, from off the Galapagos Islands D2806 in 1,379 fathoms and 

 from a great number of Nero stations, especially between Guam and 

 Yokohama. It seems to be common where Globigerina ooze condi- 

 tions obtain. 



PULVINULINA CANARIENSIS (d'Orbigny). 



Plate 23, fig. 1. 



Rotalina canariensis d'Orbigny, in Barker, Webb, and Berthelot, Hist. Nat. lies 

 Canaries, vol. 2, pt. 2, " Foraminif eres, " 1839, p. 130, pi. 1, figs. 34-36. 



Pulvinulina repanda, var. menardii, sub var. canariensis' Parker and Jones, 

 Philos. Trans., vol. 155, 1865, p. 395, pi. 16, figs. 47-49. 



Pulvinulina canariensis Owen, Journ. Linn. Soc. London, vol. 9, Zool., 1867, p. 

 148, pi. 5, fig. 21.— H. B. Brady, Quart. Journ. Micr. Sci., vol. 19, 1879, 

 p. 80.— Terrigi, Atti Acad. Pont. Nuovi Lincei, vol. 33, 1880, p. 207, pi. 3, 

 figs. 59, 60.— H. B. Brady, Rep. Voy. Challenger, Zoology, vol. 9, 1884, p. 

 692, pi. 103, figs. 8-10.— Egger, Abh. kon. bay. Akad. Wiss. Miinchen, CL 

 ii, vol. 18, 1893, p. 413, pi. 17, figs. 20-22.— Rhumbler, in Brandt, Nor- 

 disches Plankton, Heft 14, 1900, p. 16, fig. 10. — Millett, Journ. Roy. Micr. 

 Soc, 1904, p. 500.— Chapman, Trans. New Zealand Inst., vol. 38, 1905, p. 

 105.— Bagg, Bull. U. S. Nat. Mus., vol. 34, 1908, p. 160.— Chapman, Journ. 

 Linn. Soc. Zoology, vol. 30, 1910, p. 422. 



