FORAMINIFERA OF THE NORTH PACIFIC OCEAN. 9 



Distribution. — Brady notes the occurrence of this species in the 

 North Pacific at five Challenger stations, depths ranging from 345 to 

 3,125 fathoms. Bagg does not record it. I have found the species 

 at a very large number of Nero stations, depths ranging from 264 to 

 2,543 fathoms, well scattered over the area. It has also occurred at 

 various Albatross and Tuscarora stations. 



GLOBIGERINA RUBRA d'Orbigny. 



Plate 3, figs. 6-9. 



GlobigerinanibraT>'ORBiGJ<!Y, in De la Sagra, Hist. Fis. Pol. Nat. Cuba, 1839, Fora- 

 miniferes, p. 94, pi. 4, figs. 12-14. — Bailey, Smiths. Contr., vol. 2, 1851, 

 p. 11, pi., figs. 23, 24.— H. B. Brady, Quart. Journ. Micr. Sci., vol. 19, 1879, 

 p. 72; Rep. Voy. Challenger, Zoology, vol. 9, 1884, p. 602, pi. 79, figs. 11-16 — 

 H. B. Brady, Parker, and Jones, Trans. Zool. Soc, vol. 12, 1888, p. 225, 

 pi. 45, fig. 12. — Egger, Abh. kon. bay. Akad. Wiss. Munchen, CI. n, vol. 18, 

 1893, p. 360, pi. 13, figs. 42-44.— Goes, Kongl. Svensk. Vet. Akad. Handl., 

 vol. 25, 1894, p. 85, pi. 14, fig. 766. — Silvestri, Mem. Pont. Accad. Nuovi 

 Lincei, vol. 15, 1899, p. 262, pi. 5, fig. 4.— Flint, Ann. Rep. U. S. Nat. Mus., 

 1897 (1899), p. 322, pi. 69, fig. 5.— Fornasini, Mem. Accad. Sci. 1st. Bologna, 

 ser. 5, vol. 7, 1899, p. 580, pi. 2, fig. 11.— Millett, Journ. Roy. Micr. Soc, 

 1903, p. 687.— Bagg, Proc. U. S. Nat. Mus., vol. 34, 1908, p. 154.— Side- 

 bottom, Mem. and Proc. Manchester Lit. and Philos. Soc, vol. 52, No. 13, 

 1908, p. 4; vol. 54, No. 16, 1910, p. 23. 



Description. — Test composed of several inflated chambers arranged 

 in an elongate trochoid spire of about three volutions each with three 

 chambers; walls reticulate, with spines in pelagic specimens; aperture 

 an arched opening at the umbilical border of the chamber and in the 

 later chambers this is supplemented by two or more nearly circular 

 openings on the upper border of the chamber near its connection 

 with the preceding chambers; color of the early chambers, sometimes 

 of all the chambers, pink. 



Length about 0.75 mm.; diameter about 0.50 mm. 



Distribution. — This species is not nearly so abundant in the North 

 Pacific as are most of the others of the genus. Brady records it from 

 the Honolulu coral reefs, Hawaiian Islands, in 40 fathoms. Bagg 

 records it from thirteen Albatross stations also in the vicinity of the 

 Hawaiian Islands, depths ranging from 275 to 1,544 fathoms. I have 

 records of its occurrence at 26 Nero stations well scattered from the 

 Hawaiian Islands to Guam and Yokohama but it has usually occurred 

 in small numbers. 



This is a beautiful species when its delicate coloring is well pre- 

 served, but in the material I have seen there is but a small amount of 

 this species compared to what is found in material from the West 

 Indian region. 



The high spire of this species with its peculiar accessory apertural 

 openings will at once distinguish this species, even though the color 

 may be lacking, as is often the case. 



