NO. 1 CUSHMAN, MCCULLOCH : ARENACEOUS FORAMINIFERA 111 



This species has been recorded almost entirely from the Pacific. 

 Single specimens were found at stations: 462, 260, 271, 275, 424, 425, 

 2033, 2035, 2037. 



Distribution. — The records so far place this species in the Gulf of 

 California, Angel de la Guardia; southward into the region of the 

 Galapagos Islands with one record at Sulivan Bay, James Island, in 

 14 fms. 



Genus NOURIA Heron- Allen and Earland, 1914 



Nouria polymorphinoides Heron-Allen and Earland 



Plate 12, Figs. 5-10 



Nouria polymorphinoides Heron-Allen and Earland, Trans. Zool. 

 Soc. London, vol. 20, 1914, p. 376, pi. 37, figs. 1-15; 1915, p. 615.— 

 Cushman, Proc. U. S. Nat. Mus., vol. 56, 1919, p. 601, pi. 75, figs. 

 4, 5. — Heron-Allen and Earland, British Antarctic Exped., Zoology, 

 vol. 6, 1922, p. 103. — Cushman, Contr. Cushman Lab. Foram. Res., 

 vol. 3, pt. 4, 1927, p. 189; Bull. Scripps Instit. Oceanography, Tech. 

 Ser., vol. 1, no. 10, 1927, p. 142. — Hada, Sci. Rep't Tohoku Imp. 

 Univ., ser. 4, Biol., vol. VI, 1931, p. 93, fig. 45 (in text). — Heron- 

 Allen and Earland, Discovery Rep'ts, vol. IV, 1932, p. 346, pi. 8, figs. 

 25, 26.— Cushman, Bull. 161, U. S. Nat. Mus., pt. 1, 1932, p. 78, pi. 

 17, figs. 9aj h; Special Publ. No. 5, Cushman Lab. Foram. Res., 1933, 

 pi. 18, figs. 12, 13. — Bermudez, Mem. Soc. Cubana Hist. Nat., vol. 9, 

 1935, p. 177. 



Our series of figures shows the very great amount of range in ma- 

 terials of which the wall of the test is made in this species. This varies 

 from nearly pure, coarse sand grains to large, flaky, calcareous frag- 

 ments. When compared with the same stations from which Reophax 

 and other arenaceous forms show similar characters, it is evident that 

 bottom conditions and the available material very largely account for 

 this wide range. The sutures are almost completely hidden in those 

 specimens with very rough flaky exteriors and often in those composed 

 largely of sand grains, but enough specimens show the sutures and 

 chambers to warrant placing the whole series under this specific name. 

 This is one of the most common and widely distributed species in our 

 collections occurring at the following stations: 2027, 2026, 2046, 2013, 

 2061, 2062, 2044, 2067, 298, 245, 255, 244, 2047, 248, 2028, 557, 300, 

 323, 324, 286, 320, 215, 319, 254, 547, 546, Lowe-1, 290, 265, 253, 

 241, 200, 2017, 317, 311, 321, 264, 284, 285, 503, 2012, 281, 2021, 



