86 BULLETIN 71, UNTTED STATES NATIONAL MUSEUM. 



perforate; final series of chambers smooth above; aperture a looplike 

 opening on the inner margin of the chamber. 



Length, 0.3-0.8 mm. 



Distribution. — The only previous records for this species in the 

 North Pacific are those of Bagg from near the Hawaiian Islands, at 

 Albatross stations H456S, in 1,274 fathoms, and II4585, in 689 fathoms. 

 His selected specimens appear to be typical. Brady did not find 

 the species in the Challenger material from the North Pacific. In 

 the Albatross and Nero material that I have examined this species 

 has occurred at numerous stations. These are for the most part 

 in the western portion of the area. As a rule the depths at which 

 tliis species has been taken correspond well with the observations 

 of Brady on the Challenger material. All of our stations come 

 within the range given by Brady. The shallowest occurrence of 

 the species in this material is 440 fathoms and the deepest 2,086 

 fathoms. The great majority of the stations are in water between 

 1,000 and 2,000 fathoms in depth. 



The figured specimen is not an adult, the costae on all but the 

 last-formed chamber reaching well up toward the upper end, while 

 in the adult, as a rule, the three chambers last formed are com- 

 paratively smooth. The overlapping appearance is seen in profile 

 at the sides. 



An examination of Bagg's specimen recorded as Bolivina Jcarreriana 

 shows it to be a young specimen of Bulimina buchiana. 



BULIMINA ACULEATA d'Orbigny. 



Potymorpha pineiformis Soldani, Testaceographia, vol. 1, pt. 2, 1791, p. 118, 



pi. 127, fig. i, pi. 130, fig. vv. 

 Bulimina aculeata d'Orbigny, Ann. Sci. Nat., vol. 7, 1826, p. 269. — H. B. Brady, 



Rep. Voy. Challenger, Zoology, vol. 9, 1884, p. 406, pi. 51, figs. 7-9.— H. B. 



Brady, Parker, and Jones, Trans. Zool. Soc, vol. 12, 1888, p. 220, pi. 43, 



fig. 8. — Egger, Abh. kon. bay. Akad. Wiss. Munchen, CI. ir, vol. 18, 1893, 



p. 287, pi. 8, figs. 72, 78.— Chapman, Proc. Zool. Soc, London, 1895, p. 22.— 



Goes, Bull. Mus. Comp. Zool., vol. 29, 1896, p. 45.— Flint, Rep. U. S. Nat. 



Mus., 1897 (1899). p. 291. pi. 37, fig. 4.— Bagg, Proc. U. S. Nat, Mus., vol. 34, 



1908, p. 134. 

 Bulimina pupoides, var. spinulosa Williamson, Rec. For. Groat Britain, t858, 



p. 62. pi. 5, fig. 128. 

 Bulimina presli, var. aculeata Parker and Jones, Intr. Foram.. 1862. Appendix, 



p. 311. 



Description. — Test elongate, tapering, triserial, the early chambers 

 with rather stout aculeate spines, in part from the projecting border of 

 the chamber and in part from its outer surface above the projecting 

 portion; later chambers in adult specimens typically smooth and 

 inflated, with depressed sutures; wall calcareous, perforate, in adult 

 specimens white and opaque; aperture a slightly curved looplike 

 opening at the lower inner border of the chamber. 



Length, 0.4-0.8 mm. 



