FORAMINIFEEA OF THE ATLANTIC OCEAN. 33 



Genus HASTIGERINA Wyville Thomson, 1876. 



Nonionina (part) D'Orbigny, Foram. Amer. Merid., 1839, p. 27. 



Lituola (part) Jones and Parker, Quart. Journ. Geol. Soc, vol. 16, 1860, 



p. 302, table, No. 181. 

 Globigerina (part) Parker and Jones, Philos. Trans., vol. 155, 1865, p. 366. 

 Hasfigerina Wyville Thomson (type, H. ■pelagica (D'Orbigny), Proc. 



Roy. Soc, vol. 24, 1876, p. 534.— H. B. Brady, Rep. Voy. Challenger, 



Zoology, vol. 9, 1884, p. 612.— Chapjvian, The Foraminifera, 1902, p. 



206.— CusHMAN, Bull. 71, U. S. Nat. Mus., pt. 4, 1914, p. 15. 



Description. — Test composed of numerous chambers arranged in 

 a planospiral manner, inflated; surface with numerous spines, the 

 edges parallel and toothed; aperture large, broad, oval, at the inner 

 margin of the chamber. 



There is but a single species which seems to be entirely pelagic, 

 although the empty tests are found in the Glohigerina-ooze. 



HASTIGERINA PELAGICA (D'Orbigny). 



Plate 6, figs. 1-8. 



Nonionina pelagica D'Orbigny, Foram. Amer. Merid., 1839, p. 27, pi. 3, 

 figs. 13, 14. 



Lituoln pelagica Jones and Parker, Quart. Journ. Geol. Soc, vol. 16, 1860, 

 p. 302, table. No. 181. 



Globigerina pelagica Parker and Jones, Philos. Trans., vol. 155, 1865, p. 

 366. 



Hastigerina pelagica H. B. Brady, Quart. Journ. Micr. Sci., vol. 19, 1879, p. 

 77; Rep. Voy. Challenger, Zoology, vol. 9, 1884, p. 613, figs. 1-8.— 

 Pearcey, Trans. Glasgow Nat. Hist. Soc, vol. 2, 1890, p. 178. — Wright, 

 Proc. Roy. Irish Acad., ser. 3, vol. 1, 1891, p. 489.— Egger, Abh. kon. 

 bay. Akad. Wiss. Munchen, CI. II, vol. 18, 1893, p. 372, pi. 13, figs. 53, 

 54. — Chapman, Proc. Zool. Soc. London, pt. 1, 1895, p. 38.^Goes, 

 Bull. Mus. Comp. Zool., vol. 29, 1896, p. 67.— Flint, Rep. U. S. Nat. 

 Mus., 1897 (1899), p. 324, pi. 70, fig. 4.— Silvestri, Mem. Pont. 

 Accad. Nuovi Lincei, vol. 15, 1899, p. 273, pi. 5, fig. 9. — Rhumbler, in 

 Brandt, Nordisches Plankton, 1900, p. 29, fig. 31. — Millett, Journ. 

 Roy. Micr. Soc, 1903, p. 691.— Dakin, Rep. Ceylon Pearl Oyster Fish., 

 vol. 5, 1906, p. 237.— Chapman, Journ. Linn. Soc. Zool., vol. 30, 1910, 

 p. 418.— CusHMAN, Bull. 71, U. S. Nat. Mus., pt. 4, 1914, p. 15, pi. 8.— 

 Sidebottom, Journ. Roy. Micr. Soc, 1918, p. 151. 



Hastigerina murrayi Wyville Thomson, Proc. Roy. Soc, vol. 24, 1876, p. 

 534, pis. 22, 23. 



Description. — Test composed of numerous chambers arranged gen- 

 erally in a simple spiral, the chambers themselves gradualh^ increasing 

 as added and the sutures much depressed; wall finely perforate, 

 nearly smooth except for long rodlike spines with parallel sides, the 

 edges of which are serrate, especially toward the base; aperture very 

 large, oval, at the inner border of the last-formed chamber. 



Diameter of the test without spines up to 1.30 m^m. 



