NO. 1 CUSHMAN, MCCULLOCH: ARENACEOUS FORAMINIFERA 49 



whole test; aperture terminal, circular; in some cases multiple and 

 irregularly placed ; color of test grayish. 



Length up to 6.00 mm; diameter 1.00-1.25 mm. 



Specimens very variable in character but apparently all included 

 under this species have been found at the follovi^ing stations: 281, 248, 

 294, 298, 2009, 2008, 2024. 



Distribution. — Off San Miguel Island, California, in 120 fms. ; in 

 the Gulf of California from the entrance northward to Angel de la 

 Guardia Island in 24 to 112 fms.; off Lobos de Afuera Island, Peru, 

 in 100 fms. 



Genus THOLOSINA Rhumbler, 1895 

 Tholosina bulla (H. B. Brady) 



Plate 2, Fig. 6 



Placopsilina bulla H. B. Brady, Quart. Journ. Micr. Soc, vol. 21, 

 1881, p. 51; Rep. Voy. Challenger, Zoology, vol. 9, 1884, p. 315, pi. 

 35, figs. 16, 17. — Goes, Kongl. Svensk. Vet. Akad. Handl., vol. 25, no, 

 9, 1894, p. 28, pi. 6, figs. 213-215 (not figs. 2n-2\2=A Tumolagena) ; 

 Bull. Mus. Comp. Zool., vol. 29, 1896, p. 25.— Millett, Journ. Roy. 

 Micr. Soc, 1899, p. 361, pi. 5, fig. 11. 



Tholosina bulla Rhumbler, Nachr. Kongl. Ges. Wiss. Gottingen, 

 1895, p. 82.— Kiaer, Norske Nordhavs Expedition, no. 25, 1899, p. 

 4.— Rhumbler, Arch. Prot., vol. 3, 1903, p. 227, fig. 52 (in text).— 

 Cushman, Bull. 71, U. S. Nat. Mus., pt. 1, 1910, p. 49, fig. 55 (in 

 text). — Pearcey, Trans. Roy. Soc. Edinburgh, vol. 49, 1914, p. 1002. — 

 Cushman, Bull. 104, U. S. Nat. Mus., pt. 1, 1918, p. 63, pi. 25, fig. 6; 

 Rep't Canad. Arctic Exped. 1913-18, vol. 9, pt. M, 1920, p. 5, pi. 1, 

 figs. 1, 2; Bull. 100, U. S. Nat. Mus., vol. 4, 1921, p. 51, pi. 3, figs. 

 1, 2; pi. 4, fig.4; Contrib. Canadian Biol., 1921 (1922), p. 6.— Heron- 

 Allen and Earland, British Antarctic Exped., Zoology, vol. 6, 1922, p. 

 104.— Wiesner, Deutsche Sad-Polar- Exped., vol. XX, Zool., 1929, p. 

 86, pi. 7, figs. 77, 78. — Heron-Allen and Earland, Discovery Reports, 

 vol. IV, 1932, p. 330. — Cushman, Special Publ. no. 5, Cushman Lab. 

 Foram. Res., 1933, pi. 2, fig. 24. — Earland, Discovery Rep'ts, vol. VII, 

 1933, p. 63.— Blake, Biol. Surv. Mt. Desert Region, pt. 5, 1933, p. 

 71. — Earland, Discovery Rep'ts, vol. X, 1934, p. 68. — Rhumbler, 

 Schrift. Nat. Ver. fur Schleswig-Holstein, vol. 21, 1935, p. 164, pi. 4, 

 figs. 63-65. — Earland, Discovery Rep'ts, vol. XIII, 1936, p. 27. 



Pseudoplacopsilina bulla Eimer and Fickert, Zeitschr. Wiss. Zool., 

 vol. 65, 1899, p. 672. 



