12 BUIXETIN 104, UNITED STATES NATIONAL MUSEUM. 



^Sutures depressed; aperture single, on the inner margin of the last- 

 formed chamber in the umbilical area. 



Diameter up to 0.60 mm. 



Distribution. — D'Orbigny originally described this species from the 

 West Indian region. It has since been recorded from very widely 

 scattered areas in the present ocean basins. In the present paper 

 it has probably been included under G. duhia. Until D'Orbigny's 

 type specimens can be studied it may be impossible to determine just 

 what this West Indian species may be. 



GLOBIGERINA INFLATA D'Orbigny. 



Plate 3, figs. 1-3. 



Globigerina inflata D'Orbigny, in Barker, Webb, and Berthelot, Hist. Nat. 

 lies Canaries, vol. 2, pt. 2, 1839, Foraminiferes, p. 134, pi. 2, figs. 7-9. — 

 H. B. Brady, Quart. Journ. Micr. Sci., vol. 19, 1879, p. 72. — Balkwill 

 and Wright, Proc. Roy. Irish Acad., ser. 2, vol. 3, 1882, p. 549. — H. 

 B. Brady, Rep. Voy. Challenger, Zoology, vol. 9, 1884, p. 601, pi. 79, figs. 

 8-10. — Balkwill and Millett, Journ. Micr., vol. 3, 1884, p. 84, pi. 4, 

 fig. 11. — Balkwill and Wright, Trans. Roy. Irish Acad., vol. 28r 

 1885, p. 347.— H. B. Brady, Journ. Roy. Micr. Soc, 1887, p. 916.— 

 Wright, Ann. Mag. Nat. Hist., vol. 4, ser. 6, 1889, p. 449. — Pearcey, 

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

 Roy. Irish Acad., ser. 3, vol. 1, 1891, p. 488. — Egger, Abh. kon. bay. 

 Akad. Wiss. Miinchen, CI. II, vol. 18, 1893, p. 369, pi. 13, figs. 45-47.— 

 Goes, Kongl. Svensk. Vet. Akad. Handl., vol. 25, 1894, p. 85, pi. 14, 

 figs. 763-765.— Flint, Rep. U. S. Nat. Mus., 1897 (1899), p. 322, pi. 

 69, fig. 3. — FoRNAsiNi, Mem. Accad. Sci. 1st. Bologna, ser. 5, vol. 7, 1899, 

 p. 577, pi. 1, fig. 3. — Rhumbler, in Brandt, Nordisches Plankton, 

 Heft 14, 1900, p. 19, fig. 19.— Wright, Irish Nat., vol. 9, no. 3, 1900, 

 p. 55. — Millett, Journ. RoJ^ Micr. Soc, 1903, p. 687.^-Chapman, 

 Trans. New Zealand Inst., vol. 38, 1905, p. 100. — Balkwill and 

 Millett, Recent Foram. Galway, 1908, p. 6, pi. 4, fig. 11. — Chap- 

 man, Subantarctic Ids. New Zealand, 1909, p. 350; Journ. Linn. Soc. 

 Zool., vol. 30, 1910, p. 417. — Sidebottom, Mem. Proc. Manchester 

 Lit. Philos. Soc, vol. 54, No. 16, 1910, p. 23.— Heron-Allen and 

 Earland, Proc. Roy. Irish Acad., vol. 31, pt. 64, 1913, p. 105. — Cush- 

 MAN, Bull. 71, U. S. Nat. Mus., pt. 4, 1914, p. 8, pi. 4, figs. 4-8. 

 Pearcey, Trans. Roy. Soc. Edinb., vol. 49, 1914, p. 1025. — Chapman, 

 Biol. Res. "Endeavour," vol. 3, pt. 1, 1915, p. 27. — Heron-Allen 

 and Earland, Trans. Zool. Soc London, ser. 2, vol. 11, 1915, p. 679; 

 Trans. Linn. Soc. London, ser. 2, vol. 11, 1916, p. 267; Journ. Roy. 

 Micr. Soc, 1916, p. 49. — Mestayer, Trans. New Zealand Inst., vol. 

 48, 1916, p. 129. — Chapman, British Antarctic Exped., Geology, vol. 

 2, 1916 (1917), p. 69, pi. 5, fig. 35.— Sidebottom, Journ. Roy. Micr. 

 Soc, 1918, p. 150.— Cushman, Bull. 103, U. S. Nat. Mus., 1918, p. 

 65; Publ. 291, Carnegie Inst. Washington, 1919, p. 39; Bull. 100, 

 U. S. Nat. Mus., vol. 4, 1921, p. 289. 



Description. — Test composed of numerous inflated chambers 

 arranged in a trochoid spiral test of about three volutions, the last- 

 formed one usually composed of four chambers, the dorsal side of 

 the test flattened or slightly convex, the ventral side strongly convex; 



