38 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 6 



Family Saccamminidae 



Genus PSAMMOSPHAERA Schuize, 1875 



Psammosphaera fusca Schuize ( ?) 



There are specimens from but one station which can be referred 

 to this species, and that doubtfully. They are from Station 227, and are 

 larger than the following species and much more coarsely formed. 



Distribution. — Off Guadalupe Island, Mexico, in 200 fms. 



Psammosphaera parva Flint 

 Plate 1, Fig. 4 



Psammosphaera parva Flint, Rep. U. S. Nat. Mus., 1897 (1899), 

 p. 268, pi. 9, fig. 1.— Rhumbler, Arch. Prot., vol. 3, 1903, p. 242, fig. 

 77 (in text).— Cushman, Bull. 71, U. S. Nat. Mus., pt. 1, 1910, p. 

 36, figs. 29, 30 (in text) ; Bull. 104, U. S. Nat. Mus., pt. 1, 1918, p. 

 35, pi. 12, figs. 4-6; Proc. U. S. Nat. Mus., vol. 56, 1919, p. 594, pi. 

 75, fig. 3; 1. c. Bull. 100, vol. 4, 1921, p. 47, pi. 2, fig. 7.— Heron- 

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

 83. — Wiesner, Deutsche Siid-Polar-Exped., vol. XX, Zool., 1929, p. 

 80. — Earland, Discovery Rep'ts, vol. VII, 1933, p. 60. — Hada, Sci. 

 Rept. Tohoku Imp. Univ., ser. 4, Biol., vol. VI, 1931, p. 52, fig. 3 (in 

 text). — Earland, Discovery Rep'ts, vol. X, 1934, p. 63; vol. XIII, 

 1936, p. 26. 



Psamrnosphaera fusca (part) H. B. Brady, Rep. Voy. Challenger, 

 Zoology, vol. 9, 1884, p. 250, pi. 18, figs. 2-4 (not 1, 5-8).— Heron- 

 Allen and Earland, Journ. Quekett Micr. Club, ser. 2, vol. 10, 1909, 

 pi. 35, fig. 13. 



Psammosphaera fusca Schuize, var. parva Heron-Allen and Earland, 

 Journ. Roy. Micr. Soc, 1913, p. 17, pi. 2, figs. 7, 8. 



Test free, usually with a single long acerose sponge spicule incor- 

 porated in the test, which is small, rounded, single chambered; wall of 

 sand grains firmly cemented by a reddish-brown cement; aperture indefi- 

 nite, probably provided for by fine interstitial openings between the 

 sand grains. 



Diameter, usually between 0.30 and 0.75 mm. 



There are specimens from a number of stations in our material some 

 very typical with the included sponge spicule, others of the same shape 

 and color without the spicule. It is a widely distributed species from 

 the records. Stations: 505, 546, 506, 514, 513, 2017, 2070. 



Distribution. — Off Mexico, Point Escondido Bay, 20 fms.; off 

 Chiapas, Mexico, 35 fms.; off Colombia, Port Utria, 12 fms. 



