FOKAMINIFERA OF THE ATLANTIC OCEAN 55 



This variety is very common in the Albatross dredgings off the eastern 

 coast of the United States where Bailey obtained his original material. 

 The specimens are very distinct from the typical. 



Brady placed Bailey's species as a synonym of his " Truncatulina 

 haidingerii d'Orbigny" which is not the same as d'Orbigny's species. 



EPONIDES (?) TUBERCULATA (Balkwill and Wright) 



Plate 11, figures 5 a-c 



Discorhina tuberculata Balkwill and Wright, Trans. Roy. Irish Acad., 

 vol. 28, Sci., 1885, p. 350, pi. 13, figs. 28-30.— Siddall, Proc. Lit. Philos. 

 Soc, Liverpool, 1886, p. 70. — Halkyard, Trans. Manchester Micr. Soc, 

 1889, p. 16, pi. 2, fig. 10 (?).— Chaster, First Rep't. Southport Soc. Nat. 

 Sci., 1890-91 (1892), p. 65. — Earland, Journ. Quekett Micr. Club, ser. 2, 

 vol. 9, 1915, p. 224. — Sidebottom, Mem. Proc. Manchester Lit. Philos. 

 Soc, vol. 52, No. 13, 1908, p. 15, pi. 5, fig. 5; vol. 54, No. 16, 1910, p. 25.— 

 Heron-Allen and Earland, Proc. Roy. Irish Acad., vol. 31, pt. 64, 1913, 

 p. 127; Trans. Zool. Soc. London, vol. 20, 1915, p. 695; Journ. Roy. Micr. 

 Soc, 1916, p. 50. — Sidebottom, Journ. Roy. Micr. Soc, 1918, p. 

 254. — Heron-Allen and Earland, British Antarctic Exped., Zoology, 

 vol. 6. 1922, p. 233; Journ. Roy. Micr. Soc, 1930, p. 184. 



"Test, trochoid, convex superiorly and inferiorly, wdth about two 

 convolutions, which are visible on the superior side. The outermost 

 convolution shows about six chamberlets. On the superior side these 

 are separated by deeply constricted lines, and the surface of the 

 chamberlets is roughened by a number of coarse tubercles which to 

 a great extent obscure the septal lines. On the inferior side, the 

 outermost convolution alone is visible. Tliis side is usually smooth, 

 but a few tubercles sometimes occur upon it. Aperture, a slit near 

 the umbilicus, close to the inferior surface of the preceding con- 

 volution." 



This is a peculiar species with a highly ornamented surface. Most 

 of the records are from the region of the British Isles and the Medi- 

 terranean, although it has been recorded from the Kerimba Archi- 

 pelago by Heron-Allen and Earland, off Australia by Sidebottom, 

 and from off the coast of Brazil, 22° 56' S.; 41° 34' W. in 40 fathoms 

 by Heron- Allen and Earland. 



The figures and description are from the originals of Balkwill and 

 Wright. 



EPOWDES TUMIDULA (H. B. Brady) 



Plate 11, figures Q a, b 



Truncatulina tumidula H. B. Brady, Rep. Voy. Challenger, Zoology, vol. 9, 1884, 

 p. 666, pi. 95, figs. 8 a-d. — Pearcey, Trans. Roy. Soc. Edinburgh, vol. 49, 

 1914, p. 1028.— Cushman, Bull. 71, U. S. Nat. Mus., pt. 5, 1915, p. 38, pi. 15, 

 fig. 3. — Heron-Allen and Earland, British Antarctic Exped., Zoology, vol. 6, 

 1922, p. 211. 



"Test trochoid, more or less depressed; consisting of three convo- 

 lutions, the last of which is composed of about six segments; superior 

 2305—31 5 



