40 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 6 



1, 1910, p. 42, figs. 40, 41 (in text). — Rhumbler, Foram. Plankton- 

 Exped., pt. 1, 1911, pi. 2, figs. 7-14; pt. 2, 1913, p. 378.— Pearcey, 

 Trans. Roy. Soc. Edinburgh, vol. 49, 1914, p. 1000.— Cushman, Bull. 

 104, U. S. Nat. Mus., pt. 1, 1918, p. 47, pi. 21, figs. 1, 2; 1. c. Bull. 

 100, vol. 4, 1921, p. 49; Bull. Scripps Instit. Oceanography, Tech. 

 Ser., vol. 1, no. 10, 1927, p. 130. — Wiesner, Deutsche Siid-Polar- 

 Exped., vol. XX, Zool., 1929, p. 82, pi. 5, figs. 53, 54.— Hada, Trans. 

 Sapporo Nat. Hist. Soc, vol. XI, pt. 1, 1929, p. 10. — Lacroix, Bull. 

 Instit. Oceanographique, no. 545, 1929, p. 9, text figs. 16, 17. — Cush- 

 man and Parker, Proc. U. S. Nat. Mus., vol. 80, art. 3, 1931, p. 2, 

 pi. 1, fig. 1. — Hada, Sci. Rep't Tohoku Imp. Univ., ser. 4, Biol., vol. 

 VI, 1931, p. 52, fig. 4 (in text). — Heron-Allen and Earland, Discovery 

 Rep'ts, vol. IV, 1932, p. 328.— Blake, Biol. Surv. Mt. Desert Region, 

 pt. 5, 1933, p. 71.— Earland, Discovery Rep'ts, vol. VII, 1933, p. 61.— 

 Cushman, Special Publ. no. 5, Cushman Lab. Foram. Res., 1933, pi. 



2, fig. 9. — Earland, Discovery Rep'ts, vol. X, 1934, p. 64; vol. 13, 

 1936, p. 26. 



Test free, consisting of a single elongate oval or pyriform chamber 

 v^^ith a more or less distinct tubular neck usually tapering gradually 

 from the body of the chamber, undivided; wall fairly thick, of sand 

 grains of variable size, firmly cemented or in small specimens with an 

 excess of cement and fairly smooth ; aperture circular, simple, terminal. 



This is a common and well-distributed species in our collections 

 occurring at the following stations: 213, 253, 14, 414, 298, 538, 253, 

 512, 573, 583, 1021, 511, 2014, 325, 2066, 1024, 1034, 2026, 2029, 

 61, 2063, 506, 106, 2050, 516, 517, 508, 509. There is a considerable 

 amount of variation particularly in the material of the test, evidently 

 somewhat dependent upon the character of the bottom on which it lives 

 and the kind of building material available. The figured specimen is 

 one which has used comparatively few sand grains but is mostly com- 

 posed of other foraminiferal tests. 



Distribution. — Numerous stations from near San Francisco, Cali- 

 fornia, southward to stations off South America. 



Proteonina difflugiformis (H. B. Brady) 



var. lagenarium (Berthelin) 



Plate 1, Fig. 6 



Haplophragmium lagenarium Berthelin, Mem. Soc. Geol. France, 

 vol. 1, no. 5, 1880, p. 21, pi. 24, fig. 2. 



