86 



BULLETIN 104, UNITED STATES NATIONAL MUSEUM. 



I have had typical specimens from a single Albatross station D2568 

 off the northeastern United States in 1,781 fathoms (3,257 meters). 



Ammochilnsloina galeata — material examined. 



AMMOCHILOSTOMA PAUCILOCULATA (H. B. Brady). 



Trochammina paucilocuhta H. B. Br.s.dy, Quart. Joiirn. Micr. Sci., vol. 19, 1879, 

 p. 58, pi. 5, figs. 13-14; Rep. Voy. Challenger, Zoology, vol. 9, 1884, p. 344, 

 pi. 41, iigs. 1, 2.— P^GGER, Abh. Bay. Akad. Wiss. Muncheu, vol. 18, 1893, 

 p. 265, pi. 5, figs. 37, 38.— Goes, Bull. Mus. Comp. Zoo!., vol. 29, 1896, 

 1^. 33.— Flint, Ann. Rep. U. S. Nat. Mus., 1897 (1899), p. 282, pi. 27, fig. 2.— 

 Bagg, Proc. U. S. Nat. Mus., vol. 34, 1907, p. 128. 



Ammockilostoma pauciloculata Eimer and Fickert, Zeitschr. Wiss. Zcol., vol. 

 65, 1899, p. 692.— CusHMAN, Bull. 71, U. S. Nat. Mus., pt. 1, 1910, p. 126, 

 fig. 197.— Pearcey, Trans. Roy. Soc. Edinburgh, vol. 49, 1914, p. 1011. 



Description. — Test ovoid, early chambers spiral, hidden by the 

 later chambers which are in a plane oblique to the early ones and very 

 involute, inflated, only three or four chambers visible in adult speci- 

 mens, sutures distinct, depressed; wall finely arenaceous with an 

 excess of cement, surface smooth and polished ; aperture an elongate, 

 somewhat arched slit at the base of the chamber; color yellowish or 

 reddish brown, with some of the chambers gray in occasional 

 specimens. 



Diameter up to 7.5 mm. 



Distribution. — This is a widely distributed species especially in 

 deep cold waters. The Challenger records show its distribution from 

 40° N. to 40° S. at depths ranging from 390 to 2,450 fathoms (713 to 

 4,481 meters). Pearcey records it from the Scotia stations in the 

 South Atlantic 1,998 to 2,103 fathoms (3,654 to 3,846 meters). 

 Egger records it from one Ga2eJJe station off the west coast of Africa. 



Flint has the species in the Albatross material from two stations — • 

 D2313 off the Carolina coast and D2568 off Marthas Vineyard — 99 

 and 1,781 fathoms (181 and 3,257 meters). 



I' have found it as occasional specimens in Albatross material from 

 the northeastern coast of the United States, off the coast of Cuba^ 

 and in the Caribbean at depths ranging from 167 to 1,806 fathoms 

 (305 to 3,303 meters). At none of these stations could it be called 

 anything but rare, as only occasional specimens were met with. 



It is a species that can hardly be mistaken for any other. In 

 some specimens the last formed chamber has a gray color instead of 

 the usual yellowish brown. 



