FORAMINIFERA OF THE ATLANTIC 0(;EAN. 129 



Distrihution. — From an examination of the collections from the 

 Atlantic Albatross dredgings this species in its typical form occurs 

 in the colder waters along our New England and Middle Atlantic 

 coasts north of Cape Ilatteras and somewhat southward. In this 

 jjart of the Atlantic it has occurred at several stations ranging in 

 depths from 53-2,512 fathoms (97-4,594 meters). 



On the opposite side of the Atlantic the species is recorded from 

 numerous stations, b}'' Brady in the Challenger Report from Porcu- 

 pine dredgings to the west and south of Ireland at depths of 90 to 

 1,630 fathoms (165 to 2,981 meters). It is also recorded off Ireland 

 from 54 to 1,000 fathoms (99 to 1,829 meters) (J. Wright) ; from the 

 "warm area" of the Faroe Channel (Pearcey) ; North Sea and coast of 

 Norway 180 to 360 meters (98 to 197 fathoms) (Goes) ; a few speci- 

 mens at two stations in the Clare Island region of western Ireland in 

 12 to 15 fathoms (21 and 27 meters), off South Cornwall, and west of 

 Scotland (Heron-Allen and Earland). 



From my own observations it seems that the uncoiled Cassidulinae 

 of the tropical American waters represent an entirely different species. 



A reexamination of the New Zealand specimens I recently re- 

 corded under this species " shows that they belong to another species, 

 as was suggested at that time. This vSouth Pacific or perhaps liido- 

 Pacific species may be known as Cassidulina orientalis Cushman, new 

 species. It differs from C. hradyi Norman in the more compressed, 

 broader form, less elongate test, and in the wall which in the Pacific 

 species is rather distinctly pmictate, the test not polished and shining 

 white as in the North Atlantic species. Brady records this species 

 from five stations in the South Pacific and also off Japan and the 

 Philippines, areas which have a generally similar fauna. It is to be 

 suspected that of the Challenger figures, plate 54, figure 10, may be 

 from a specimen of Pacific origin, as it compares favorably with 

 those I have had from off New Zealand. It is also to be suspected 

 that the material of the following references may be C. orientalis 

 Chapman^* and Sidebottom.-" 



Sidebottom figures a specimen referred to C. hradyi from the coast 

 of the Island of Delos,^** which in its general appearance seems more 

 nearly allied to C. orientalis than to C. hradyi. He also records it 

 from the Bay of Palermo.^^ 



The material which I have had from deep water in the North 

 Pacific seems to be very close to typical C. hradyi, and it would be 



« Proc. U. S. Nat. Mus., vol. 56, 1919, p. 606. . • i 



M Proc. Zool. Soc. London, 1895, p. 25 (Arabian Sea), and Trans. New Zealand Inst., vol. 48, 1916, p .420 

 (north coast of New Zealand, 98 fathoms (179 meters)). 

 w Joiirn. Roy. Micr. Soc., 1918, p. 128 (east coast of Australia). 

 M Mem. Proo. Manchester Lit. Philos. Soc., vol. 49, No. 5, 1905, p. 17, pi. 3, fig. 10. 

 " Idem., vol. 54, pt. 3, 1910, p. 14. 



