294 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 6 



Accad. Nuovi Lincei, vol. 12, 1896, p. 194; 1. c, vol. 15, 1899, pi. 6, 

 fig. 8.— Jones, Foram. Crag, pt. 3, 1896, p. 232, pi. 7, fig. 16. — Bagg, 

 Proc. U. S. Nat. Mus., vol. 34, 1908, p. 145. 



Triplasia tricarinata Cushman (not Vaginulina tricarinata d'Or- 

 bigny). Bull. 1, U. S. Nat. Mus., pt. 3, 1913, p. 62, pi. 39, fig. 2; 

 Bull. 100, vol. 4, 1921, p. 219. 



Trifarina bradyi Cushman, Bull. 104, U. S. Nat. Mus., pt. 4, 1923, 

 p. 99, pi. 22, figs. 3-9; Publ. 342, Carnegie Instit. Washington, 1924, 

 p. 27, pi. 7, fig. 5; Bull. 27, Bernice P. Bishop Mus., 1925 (1926), 

 p. 127; Contr. Cushman Lab. Foram. Res., vol. 1, pt. 4, 1926, p. 86; 

 1. c, vol. 5, 1929, p. 96, pi. 13, fig. 39. — Thalmann, Eclogae geol. 

 Helvetiae, vol. 25, 1932, p. 305. — Cushman, Special Publ. 4, Cushman 

 Lab. Foram. Res., 1933, pi. 22, fig. 15; Special Publ. 5, pi. 28, fig. 15; 

 Bull. 119, Bernice P. Bishop Mus., 1934, p. 127, pi. 15, fig. 11 ; Forami- 

 nifera, 3rd Ed., 1940, pi. 22, fig. 15; Key, pi. 28, fig. 15.— LeRoy, Colo- 

 rado School Mines Quart., vol. 36, No. 1, pt. 1, 1941, p. 38, pi. 2, 

 figs. 114, 115; pt. 2, p. 82, pi. 2, fig. 24.— Cushman, Bull. 161, U. S. 

 Nat. Mus., pt. 3, 1942, p. 59, pi. 15, fig. 13. — Cushman and Stainforth, 

 Special Publ. 14, Cushman Lab. Foram. Res., 1945, p. 50, pi. 8, fig. 4. — 

 Cushman, U. S. Geol. Survey Prof. Paper 210-A, 1946, p. 10. 



"Test elongate, slightly tapering toward either end, often somewhat 

 twisted, triangular in transverse section, with carinae at three angles, 

 thin and fairly high, running from the initial end to the aperture, even 

 onto the neck itself; chambers distinct, those of the earlier portion at 

 least irregularly spiral, later ones less distinctly so; sutures distinct but 

 not depressed; wall thin, translucent, finely punctate, smooth; aperture 

 terminal, central, at the end of a short tubular neck, usually with a 

 phialine lip. 



"Length up to 0.50 mm." 



The original description is quoted above. This species was described 

 from the Caribbean Sea and is very widely distributed in the Atlantic 

 and Pacific as well as fossil. These specimens from stations 409, 410, 412, 

 461, 466, 468, 473, 648, 1023, have been compared with types and seem 

 identical, although slightly smaller. 



Distribution. — Most of these records are off the Galapagos Islands 

 showing a depth range of 9 to 111 fms, with one record from Gibraltar 

 in 90 fms and another off Santa Rosa Island in 16 fms. 



