FORAMINIFERA OF THE ATLANTIC OCEAN 41 



SPIROLOCULINA PLANULATA (Lamarck) 



Plate 8, Figures 2-5 



Miliolites plamdata Lamarck, Ann. Mus., vol. 5, 1805, p. 352, No. 4. 



Spiroloculina planulata Macdonald, Ann. Mag. Nat. Hist., ser. 2, vol. 20, 

 1857, p. 153, pi. 6, fig. 28.— H. B. Brady, Trans. Linn. Soc. Zool.' vol. 24^ 

 1864, p. 472 (table). — Jones, Parker, and H. B. Brady, Pal. Soc. Mon. 

 19, pt. 1, 1866, p. 15, pi. 3, figs. 37, 38.— H. B. Brady, Nat. Hist. Trans. 

 Northumberland and Durham, vol. 1, 1865 (1867), p. 93.— Balk will and 

 MiLLETT, Journ. Micr., vol. 3, 1884, p. 6.— H. B. Brady, Rep. Voy. 

 Challenger, Zoology, vol. 9, 1884, p. 148, pi. 9, figs. 11 a, 6.— Balkwill and 

 Wright, Trans. Roy. Irish Acad., vol. 28, Sci., 1885, p. 323.— Siddall, 

 Proc. Lit. Philos. Soc. Liverpool, 1886, p. 62 (list).— H. B. Brady, 

 Parker, and Jones, Trans. Zool. Soc, vol. 12, 1888, p. 214, pi. 40, figs. 

 14, 15. — Halkyard, Trans. Manchester Micr. Soc, 1889, p. 59. — Howchin 

 Trans. Proc. Roy. Soc. So. Australia, vol. 13, 1890, p. 163. — Chaster' 

 First Rep't Southport Soc. Nat. Sci., 1890-91 (1892), p. 55.— J. Wright, 

 Proc Roy. Irish Acad., ser. 3, vol. 1, 1891, p. 463. — De Amicis, Boll. Soc. 

 Geol. Ital., vol. 12, fasc. 3, 1893, p. 19.— Woodward, The Observer, vol. 



4, 1893, p. 76. — Goes, Kongl. Svensk. Vet. Akad. Handl., vol. 25, No. 9, 

 1894, p. 107, pi. 18, figs. 836-836C.— Jones, Parker, and H. B. Brady, 

 Pal. Soc. Mon. 19, pt. 2, 1895, p. 103, pi. 3, figs. 37, 38, woodcut fig. 1.— 

 A. SiLVESTRi, Atti Accad. Sci. Acireale, vol. 7, 1896, p. 11. — Flint, Ann. 

 Rep't U. S. Nat. Mus., 1897 (1899), p. 297, pi. 42, fig. 4.— Millett, Journ. 

 Roy. Micr. Soc, 1898, p. 264. — Kiaer, Rep't Norwegian Fish, and Mar. 

 Invest., vol. 1, No. 7, 1900, p. 29.— Wright, Irish Nat., vol. 9, 1900, p. 

 52. — Sidebottom, Mem. Proc. Manchester Lit. Philos. Soc, vol. 48, No. 



5, 1904, p. 5. — Earland, Journ. Quekett Micr. Club, ser. 2, vol. 9, 1905, 

 p. 192. — Millett, Rec. Foram. Galway, 1908, p. 4. — Bagg, Proc. U. S. 

 Nat. Mus., vol. 34, 1908, p. 119. — Sidebottom, Mem. Proc. Manchester 

 Lit. Philos. Soc, vol. 54, No. 16, 1910, p. 2. — Heron-Allen and Earland, 

 Journ. Roy. Micr. Soc, 1911, p. 302; Proc. Roy. Irish Acad., vol. 31, pt. 

 64, 1913, p. 23; Trans. Zool. Soc London, vol. 20, 1915, p. 555; Trans. 

 Linn. Soc London, vol. 11, ser. 2, 1916, p. 207; Bull. Soc. Sci. Hist. Nat. 

 Corse, 1922, p. 115. — Cushman, Publ. 311, Carnegie Instit. Washington, 

 1922, p. 60. — Heron-Allen and Earland, British Antarctic Exped., 

 Zoology, vol. 6, 1922, p. 63; Journ. Linn. Soc. Zool., vol. 35, 1924, p. 

 603.— Chapman, New Zealand Geol. Surv., Pal. Bull. No. 11, 1926, p. 

 25. — Heron-Allen and Earland, Trans. Zool. Soc London, vol. 22, pt. 

 1, 1926, p. 68 (list). 



Test irregularly elliptical; periphery concave, especially in the last- 

 formed chambers, initial end of the chamber projecting considerably 

 beyond the aperture of the previously formed one, the apertural end 

 very slightly, if at all, projecting, side view concave; sutures distinct; 

 surface matt; aperture with a slight Up and an elongate tooth, slightly 

 bifid at the tip. 



Length, 1.10 mm.; breadth, 0.90 mm.; thickness, 0.40 to 0.50 mm. 



There are many records for this species from the European coasts, 

 especially from about the British Isles. The records from the west- 

 ern Atlantic are few. The species evidently occurs fossil also in 

 the late Tertiary. It is recorded from the Mediterranean and the 

 31569—29 4 



