FORAMINIFERA OF THE ATLANTIC OCEAN. 39 



BOLIVINA PLICATA d'Orbljny. 



Bolivina plicata d'Orbiony, Voy. Amer. Mt'ricl., vol. 5, pt. 5, 1839, "Fora- 

 tniniferep," p. 62, pi. 8, fipp. 4-7.— H. B. Brady, Ann. Map. Nat. Hist., 

 eer. 4, vol. 6, 1870, p. 302, pi. 12, fip:s. 7a, b. — Moebius, Beitr. ^^eeresfauna, 

 Insel Mauritius, 1880, p. 95, pi. 9, figs. 12, 13. — Bai-kwill and Wright, 

 Proc. Roy. Irish Acad., ser. 2, vol. 3, 1882, p. 447; Trans. Roy. Irish Acad., 

 vol. 28, 1885, p. 335.— H. B. Brady, Journ. Roy. Micr. Soc, 1887, p. 889.— 

 H. B. Brady, Parker, and Jones, Trans. Zool. Soc. London, vol. 12, 1888, 

 p. 221. — Halkyard, Trans. Ann. Rep. Manchester Micr. Soc, 1889, p. 65, 

 pi. 1, fig. 13. — Wright, Proc. Roy. Irish Acad., ser. 3, vol. 1, 1891, p. 474. — 

 Robertson, Trans. Nat. Hist. Soc. Glasgow, vol. 3, pt. 3, 1892, p. 240.— 

 Goes, Kongl. Svensk. Vet. Akad. Handl., vol. 25, no. 9, 1894, p. 51, pi. 9, 

 figs. 487, 488. — Millett, Journ. Roy. Micr. Soc, 1900, p. 545. — Cushman, 

 Amer. Geologist, vol. 33, 1904, p. 265. — Earland, Journ. Quekett Micr. 

 Club, ser. 2, vol. 9, 1905, p. 209.— Bagg, Proc. U. S. Nat. Mus., vol. 34, 1908, 

 p. 138. — Heron-Allen and Earland, Journ. Roy. Micr. Soc, 1908, p. 335. — 

 Sidebottom, Mem. Proc. Manchester Lit. Philos. Soc, vol. 54, pt. 3, 1910, 

 p. 13.— Cushman, Bull. 71, U. S. Nat. Mus., pt. 2, 1911, p. 43.— Heron- 

 Allen and Earland, Proc Roy. Irish Acad., vol. 31, pt. 64, 1913, p. 68; 

 Journ. Roy. Micr. Soc, 1916, p. 43; Trans. Linn. Soc. Zool., eer. 2, vol. 11, 

 1916, p. 240.— Sidebottom, Journ. Roy. Micr. Soc, 1918, p. 127. 



This species is recorded at numerous stations off the British Isles, 

 off the coast of Norway, off the Abrohlos Bank, Brazil, and elsewhere 

 in other oceans. The comparison of the original figure given by 

 d'Orbigny, whose specimens were from off the coast of Chile, with 

 those referred to this name, such as that given by Goes in the above 

 referred, show what very great differences there are in these forms 

 referred to this species. Heron-Allen and Earland (1913, p. 68) give 

 two references above referred to as figured specimens, the original of 

 d'Orbigny, and that of Goes, and it is very difficult with such a basis 

 to determine what form occurs in any definite region until the speci- 

 mens themselves are studied and figured. Nothing has been noted 

 in the western Atlantic material which I could refer to this species. 



BOLIVINA (BIFARINA) PORRECTA H. B. Brady. 



Plate 7, fig. 2. 



Bolivina porrecta II. B. Brady, Quart. Journ. Micr. Sci., vol. 21, 1881, p. 57; 

 Rep. Voy. Challenger, Zoology, vol. 9, 1884, p. 418, pi. 52, figs. 22a-c.— 

 Flint, Rep. U. S. Nat. Mus., 1897 (1899), p. 292, pi. 38, fig. 2. 



Description. — Test elongate, slightly tapering, apical end bluntly 

 rounded, apertural end obliquely truncate, compressed; chambers 

 numerous, broadest near the middle, somewhat inflated, the later 

 ones extending clear across the test; sutures distinct, depressed, wall 

 thin and translucent, very finely perforate, smooth; aperture elon- 

 gate, elliptical, terminal, in a slight lip. 



Length 1 mm. or slightly more. 



Distribution. — One of the original localities for this species was a 

 Challenger station off Culebra Island, West Indies, in 390 fathoms 



