FOBAMINIFEEA OF XOBTH PACIFIC OCEAN. 101 



UVIGERINA ASPERULA Czjzek. 



Plate 43, fig. 1. 



Uvigerina asperula Czjzek. Haidinger's Nat. Abh., 2, 1848, p. 146, pi. 13, figs. 

 14, 15.— Reuss, Sitz. kais. Akad. Wiss., Wien, vol. 55, Abth. 1, 1867, p. 93, 

 pi. 4, figs. 6a, 6, 7, 8, 9.— Terrigi, Atti Accad. Port. Nuovi Lincei, vol. 35, 

 1883, p. 185, pi. 2, fig. 26.— H. B. Brady, Rep. Voy. Challenger, Zoology, 

 vol. 9, 1884, p. 578, pi. 75, figs. 6-8.— Sherborn and Chapman, Journ. Roy. 

 Micr. Soc, 1886, p. 755, pi. 16, fig. 7. — H. B. Brady, Parker, and Jones, 

 Trans. Zool. Soc. London, vol. 12, 1888, p. 225, pi. 45, figs. 4, 5.— Terrigi, 

 Mem. Com. Geol. Italia, vol. 4, 1891, p. 100, pi. 3, fig. 25.— Wright, Proc. 

 Roy. Irish Acad., ser. 3, vol. 1, 1891, p. 487. — Egger, Abh. kon. bay. Akad. 

 Wiss. Miinchen, CI. n, vol, 18, 1893, p. 312, pi. 9, fig. 41.— Chapman, Proc. 

 Zool. Soc. London, 1895, p. 35.— Flint, Rep. U. S. Nat. Mus., 1897 (1899), 

 p. 320, pi. 68, fig. 4.— Millett, Journ. Roy. Micr. Soc, 1903, p. 267.— Chap- 

 man, Trans. New Zealand Inst., vol. 38, 1906, p. 99; Journ. Linn. Soc, 

 Zoology, vol. 30, 1910, p. 415.— Bagg, Proc. U. S. Nat. Mus., vol. 34, 1908, 

 p. 150. 



Description. — Test elongate-ovate, chambers somewhat inflated, 

 sutures distinct but not deep; surface ornamented by a hispid or 

 spinose exterior of much variableness in different specimens, the fine 

 spines either in indefinite longitudinal rows or scattered without a 

 definite arrangement; initial end bluntly rounded or with a distinct 

 stout spine, aperture with a definite tubular neck with a well 

 developed phialine lip. 



Length 0.6 to 0.8 mm. 



Distribution. — From the material examined this seems to be one 

 of the most common species of the genus, having been dredged at 

 many stations in various parts of the North Pacific, from 323 to 1,758 

 fathoms. It was recorded from between 20 and 40 stations well 

 scattered over the area. The bottom temperature where recorded is 

 in almost all cases between 35° and 36° F. 



Brady records this species from three stations in the North Pacific 

 in 345 to 2,300 fathoms, and Bagg records it from 13 Albatross stations 

 off the Hawaiian Islands in 275 to 1,544 fathoms. 



There is certainly a very considerable difference in the shape and 

 ornamentation of the various forms assigned to this species. Even 

 in the material examined it appears that various modifications can 

 be segregated, and with sufficient material from other areas it would 

 not be difficult to establish definite groups which have in general a 

 hispid ornamentation. 



The specimen figured is one of medium coarseness as far as the 

 ornamentation is concerned. 



