FORAMINIFERA OF NORTH PACIFIC OCEAN. 



33 



Distribution. — Generally recorded from the North Pacific by Brady. 

 Goes records it from several stations in the eastern Pacific in 695- 

 1,882 fathoms, and Bagg records it at a number of stations in the 

 vicinity of the Hawaiian Islands, in 104-1,544 fathoms. I have 

 found the species well scattered in the North Pacific material that 

 I have examined. The deepest record is Nero station 2049, in 

 2,226 fathoms, off the Hawaiian Islands. 



A considerable variety of smooth forms have been assigned to tins 

 species, as a study of the references quoted will show. That there 

 are several species or varieties present seems 

 most likely. The variety with a portion of each 

 chamber smooth, without punctse, as noted by 

 Millet t, was found off the southern coast of Japan, 

 and there may be other varieties with a definite 

 distribution were sufficient material available from 

 the different oceans. 



The elongate form is not greatly removed from 

 some forms of B. nobilis, except for the striations 

 of the latter. 



BOLIVINA DILATATA Reuss. 



Bolivina dilatata Reuss, Denkschr. Akad. Wise.,Wien, 

 vol. 1, 1850, p. 381, pi. 48, fig. 15.— Terrigi, Atti 

 Accad. Pont. Nuovi Lincei, vol. 33, 1880, p. 107, 

 pi. 2, fig. 42. — H. B. Brady, Rep. Voy. Challenger, 

 Zoology, vol. 9, 1884, p. 418, pi. 52, figs. 20, 21.— Ma- 

 lagoli, Boll. Soc. Geol. Ital., ser. 4, vol. 6, 1887, p. 

 520, pi. 13, fig. 3. — H. B. Brady, Parker, and Jones, 

 Trans. Zool. Soc. London, vol. 12, 1888, p. 221, pi. 

 43, figs. 3, 6. — Terrigi, Mem. Com. Geol. d'ltal., 

 vol. 4, 1891, p. 75, pi. 1, fig. 29.— Woodward and 

 Thomas, Geol. Nat. Hist. Surv. Minnesota, vol. 3, 

 1893, p. 33, pi. e, fig. 26— Egger, Abh. kon. bay. 

 Akad. Wiss. Miinchen, CI. n, vol. 18, 1893, p. 294, 

 pi. 8, figs. 17-20.— Goes, Kongl. Svensk. Vet, Akad. 

 Handl., vol. 25, No. 9, 1894, p. 50, pi. 9, figs. 482- 

 486, pi. 14, figs. 5-10.— Egger, Jahr. 16, naturhist. 



Ver. Passau, 1895, p. 10, pi. 1, fig. 6.— Goes, Bull. Mus. Comp. Zool., vol. 

 29, 1896, p. 47.— Millett, Journ. Roy. Micr. Soc, 1900, p. 542. 



Description. — Test cuneate, broadening rapidly toward the aper- 

 tural end, the apical end small, blunt, much compressed, the edges 

 thin; chambers numerous, broad and low, little inflated; sutures very 

 distinct but hardly depressed; wall smooth, punctate; aperture elon- 

 gate, narrow, ending at the edge of the inner border of the chamber; 

 color white. 



Length 0.3-0.6 mm. 



71112°— Bull. 71, pt2— 11 3 



Fig. 54.— Bolivixa DI- 

 LATATA. x on. <i, 

 APERTURAL VIEW; I), 

 FRONT VIEW. 



