58 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 6 



p. 73; vol. X, 1934, p. 75.— Rhumbler, Schrift. Nat. Ver. fiir Schles- 

 wig-Holstein, vol. 21, 1935, p. 181, pi. 9, figs. 124, 125.— Earland, 

 Discovery Rep'ts, vol. XIII, 1936, p. 29. 



Test free, consisting of an ovoid proloculum passing into a short, 

 tubular chamber, soon becoming branched, of nearly uniform diameter 

 throughout; w^all composed of sand grains, firmly cemented vi^ith numer- 

 ous sponge spicules fixed in the outer layer, giving a bristling appear- 

 ance to the vv^hole test; apertures formed by the open ends of the tubu- 

 lar chamber; color reddish or yellowish brown or gray. 



Rare specimens show the proloculum. There is a considerable range 

 in the material of which the test is made. At one station, 2070, there 

 is a series of very small, slender specimens that are assigned here but 

 they are very minute compared with the usual run of material. Locali- 

 ties: 2034, 2035, 2024, 2063, 299, 246, 290, 226. 



Distribution. — Off Guadalupe Island, Mexico, in 96 to 250 fms. ; 

 in the Gulf of California, Mexico, one record north of Angel de la 

 Guardia Island in 60 fms. 



Family Reophacidae 



Genus REOPHAX Montfort, 1808 



Reophax curtus Cushman 



Plate 2, Fig. 12 



Reophax curtus Cushman, Bull. 104, U. S. Nat. Mus., pt. 2, 1920, 

 p. 8, pi. 2, figs, 2, 3; Contrib. Canadian Biol., 1921 (1922), p. 7.— 

 Hada, Sci. Rep't Tohoku Imp. Univ., sen 4, Biol., vol. VI, 1931, p. 

 57, fig. 8 (in text). — Earland, Discovery Rep'ts, vol. X, 1934, p. 79; 

 vol. XIII, 1936, p. 30. 



Test short and thick, composed typically of three chambers, increas- 

 ing rapidly in size as added, last-formed chamber making up a large 

 proportion of the test, fusiform or elliptic, axis of the test straight or 

 more often slightly curved; wall composed of angular quartz sand 

 grains with a considerable amount of gray cement between; apertural 

 end slightly tapering, without a definite neck, the aperture being an 

 opening between three or more sand grains at the end of the chamber. 



Our material shows a very great variation in the type of material of 

 which the test is built but the general form remains fairly constant. 

 Specimens from sandy bottoms such as that figured very closely resem- 

 ble the type specimens. Others in different conditions use in addition 

 fragments of mollusca and occasionally other foraminifera. Localities: 



