FORAMINIFERA OF THE ATLANTIC OCEAN. 



101 



Ammodiscus charoides Berthelin, Foram. de Bourgneuf et Pornichet, 1878, p. 23 , 

 No. 18.— H. B. Brady, Rep. Voy. Challenger, Zoologj', vol. 9, 1884, p. 334, 

 pi. 38, figs. 10-16.— J. Wright, Proc. Roy. Irish Acad., vol. 1, 1891, p. 469.— 

 Chapman, Proc. Zool. Soc. London, 1895, p. 18. — Flint, Rep. U. S. Nat. 

 Mus., 1897 (1899), p. 279, pi. 24, fig. 2. 



Gordiammina charoides Rhumbler, Nachr. Ges. Wisa. Gottingen, 1895, ]>. 84.— 

 KiAER, Norske Nordhavs Expedition, No. 25, 1899, p. 4. — Rhumbler, Arch. 

 Prot., vol. 3, 1903, p. 282, fig. 133 (in text).— Cushman, Bull. 71, U. S. Nat. 

 Mus., pt. 1, 1910, p. 77, figs. 91-96 (in text).— Pearcey, Trans. Roy. Soc. 

 Edinburgh, vol. 49, 1914, p. 1005. 



Glomospira charoides Rhumbler, Foram. Plankton Exped., pt. 1, 1909, pi. 4, 

 fig. 8; pt. 2, 1913, p. 422. 



Description. — Test consisting of an ovoid or subglobular pro- 

 loculuni and long, undivided second chamber evenly coiled in a series 

 of layers making a subglobular mass, then turning at right angles to 

 its preceding axis and making finally a partial or even complete 

 revolution about the earlier formed globular test; wall finely arena- 

 ceous with a predominance of cement; surface smooth and polished; 

 color usually reddish brown. 



Diameter, up to 0.5 mm. 



Distnhuiion.— This is a very widely distributed species, never so 

 far as I have seen, occurring in any considerable numbers. On the 

 European side it is known from the MediteiTanean, Bay of Biscay, 

 Faroe Channel, and west of Scotland and about the British Isles. 

 Flint records a single station, D2041, 1,608 fathoms, south of Georges 

 Banks, and I have found the species in the same general region at 

 the same station and at several other Albatross stations. 



Glomospira charoides — material examined. 



Genus TURRITELLELLA Rhumbler, 1903. 



Ti'ochamviina (psirt) Siddall (type, Trochammina shoneana SiddaW) , Proc. Ches- 

 ter Soc. Nat. 8ci., pt. 2, 1878, p. 40. 



Ammodiscus (part) Siddall, Cat. Brit. Foram., 1879, p. 5. — Balkwill and 

 MiLLETT, Joum. Micr., vol. 3, 1884, p. 25. — H. B. Brady, Rep. Voy. 

 Challenger, Zoology, vol. 9, 1884, p. 335. 



Tunitrllopsis Rhumbler (not of G. 0. Sara, 1878), Nachr. Ges. Wiss. Gottingen, 

 1895, p. 84. 



Turritellella Rhumbler, Arch. Prot., vol. 3, 1903, p. 283. — Cushman, Bull. 71, 

 U. S. Nat. Mus., pt. ], 1910, p. 78. 



