FOKAMINIFERA OF NORTH PACIFIC OCEAN. 89 



Length 0.6 to 0.8 mm. 



Distribution. — This species is recorded by Picaglia from long. 

 109° 58' W.; lat. 0° 47' N. in 4,670 meters. 



Bagg's specimens referred by him to PolymorpMna communis seem 

 more properly to be placed here. His specimens are figured. They 

 are from Albatross station H4585 in 689 fathoms near the Hawaiian 

 Islands. 



POLYMORPHINA COMPRESSA d'Orbigny. 

 Plate 40, fig. 3. 



Polymorpha "Subovalia" Soldani, Testaceographia, vol. 1, pt. 2, 1791, p. 114, 

 pi. 114, fig. F, I; pi. 115, fig. N; pi. 116, figs. V, X, etc. 



PolymorpMna compressa d'Orbigny, For. Foss. Vienne, 1846, p. 233, pi. 12, 

 figs. 32-34. — H. B. Brady, Parker, and Jones, Trans. Linn. Soc. London, 

 p. 227, pi. 40, figs. 12a-/. — H. B. Brady, Rep. Voy. Challenger, Zoology, vol. 

 9, 1884, p. 565, pi. 72, figs. 9-11.— Mariani, Boll. Soc. Geol. Italia, vol. 7, 

 1888, p. 288, pi. 10, fig. 13.— Wright, Proc. Roy. Irish Acad., ser. 3, vol. 1, 

 1891, p. 487. — Egger, Abh. kon. bay. Acad. Wiss. Miinchen, CI. n, vol. 18, 

 1893, p. 309, pi. 9, figs. 11-13.— Goes, Kongl. Svensk. Vet. Akad. Handl., 

 vol. 25, No. 9, 1894, p. 58, pi. 10, figs. 539-553.— Flint, Rep. U. S. Nat. 

 Mus., 1897 (1899), p. 319, pi. 67, fig. 3.— Millett, Journ. Roy. Micr. Soc, 

 1903, p. 262. — Sidebottom, Mem. and Proc. Manchester Lit. and Philos. Soc, 

 vol. 51, No. 9, 1907, p. 13, pi. 3, figs. 1-6, 12, 13 [?].— Bagg, U. S. Nat. Mus., 

 vol. 34, 1908, p. 149.— Chapman, Proc. Roy. Soc. Victoria, vol. 22, 1910, 

 p. 280. 



Description. — Test usually oblong, strongly compressed, chambers 

 numerous, elongate, but often as broad as long in surface view except 

 the last, in an alternating biserial arrangement, sutures somewhat 

 excavated, surface somewhat smooth, but occasionally with traces 

 of striae near the initial end; aperture strongly radiate, often on a 

 protuberant portion of chamber. 



Length up to 3.15 mm. 



Distribution. — Brady records this species from the North Pacific 

 without station. Bagg records it from three stations off the Hawaiian 

 Islands, D4017, 305 fathoms, H4430 in 1,544 fathoms, and H4694 

 in 865 fathoms. Of the two specimens of the Bagg material in 

 Washington which I have examined, the specimen from D4017 is 

 definitely a Quinqueloculina and that from H4694 too broken to 

 determine. 



Excellent specimens of this species were obtained from material 

 dredged at Albatross station H4878 in 84 fathoms and D4825 in 120 

 fathoms, adjacent stations off the coast of Japan. 



This seems to be a more clearly defined species than most of the 

 others of the genus. 



