FORAMINIFERA OF THK ATLANTIC OCEAN. 



73 



visible from above, lunate, sutures oblique, from below generally tri- 

 angular, sutures slightly curved, umbilicate; wall arenaceous, rather 

 smoothly cemented; aperture elongate, slight!}'' arched, at the base of 

 the chamber; color yellowish brown. 



Diameter up to ] .25 mm. 



Distribution. — Most of the records indicate that this species is 

 found most frequently in comparatively shallow water. The few 

 Albatross records however arc in comparatively deep water, but the 

 specimens seem to belong to this species. The other records are well 

 scattered, those from about the British Isles in shallow water. TJiore 

 seem to be no records from the South Atlantic. 



Heron-Allen and Earland discuss this species in their Clare Island 

 paper, noting that in the Challenger report Brady was not correct in 

 his figures and that a later confusion has resulted. 



Trochammina sqiinynuta — material examined. 



TROCHAMMINA INFLATA (Montagu). 



Nautilus injlutus Montagu, Test. Brit., Suppl., 1808, p. 8], pi. 18, tig. 3. 



RotaUna inflnta Williamson, Rec. Forani. Great Britain, 1858, p. 50, pi. 4, figs. 

 93, 94.— Parker and Jones, Ann. Mag. Nat. Hist., ser. 3, vol. 4, 1859, p. 347, 

 fig. F.— Williamson, Pop. Sci. Rev., vol. 4, 1865, p. 174, pi. 8, fig. 8. 



Trochnmmina injlata W. B. Carpenter, Parker, and Jones, Int. Foram., 1862, 

 p. 141, pi. 11, fig. 5. — n. B. Brady, Nat. Hist. Trans. Northumberland and 

 Durham, vol. 1, 1865, p. 95. — Haeusler, Ann. Mag. Nat. Hist., ser. 5, vol. 10, 

 1882, p. 351, pi. 15, figs. 5-7; Neues Jahrb., 1883, pi. 1, fig. 60; pi. 4, figs. 

 6, 7.— H. B. Brady, Rep. Voy. Challenger, Zoology, vol. 9, 1884, p. 338, pi. 41, 

 figs. 4a-c.— Haeusler, Abh. Schweiz. Pal. Ges., vol. 17, 1890, p. 65, pi. 10, 

 fig.s. 25, 26.— J. Wright, Proc. Roy. Irish Acad., ser. 3, vol. 1, 1891, p. 469.— 

 Woodward and Thomas, Geol. and Nat. Surv. Minnesota, vol. 3, 1893, p. 28, 

 j)l. D, fig. 31.— Egger, Al)h. Bay. Akad. Wiss. Munchen, vol. 18, 1893, pi. 5, 

 figs. 10-12, 16-18.— Goios, Kongl. Svcnsk. Vet. Akad. Handl., vol. 25, No. 9, 

 1894, p. 29, pi. 6, figs. 222-224.— Millett, Journ. Roy. Micr. Soc, 1899, p. 

 364.— Fornasini, Mom. Real. Accad. Soi. Ist. Bologna, vol. 8, 1900, p. 367, 

 fig. 15.^ — -Sidebottom, Mem. and Proc. Manchester Lit. and Philos. Soc, vol. 

 49, No. 5, 1905, p. 6, pi. 1, fig. 9. — Earland, Journ. Quekett Micr. Club, ser. 2, 

 vol. 9, 1905, p. 203. — Heron-Allen and Earland, Journ. Roy. Micr. Soc, 

 1909, p. 324.— CusHMAN, Bull. 7l, U. S. Nat. Mus., pt. 1, 1910, p. 121, fig. 

 188o, h. — Heron-Allen and Earland, Proc. Roy. Irish Acad., vol. 31, pt. 64, 

 1913, p. 52; Trans. Zool. Soc London, vol. 20, 19i5, p. 620; Trans. T>inn. Soc 

 London, vol. 11, pt. 13, 1916, p. 227. 



