FORAMINIPERA OF THE ATLANTIC OCEAN. 



18 



Mufl. Comp. Zool., vol. 29, 1896, p. 19.— Fi,int, Rup. U. .s. .Nat. Mus., 1897 

 (1899), p. 265, pi. 1.— Rhumbler, Arch. Prot., vol. 3, 1903, p. 219, fig. 41 

 (in text).— CusiiMAN, Bull. 71, U. S. Nat. Mus., pt. 1, 1910, p. 21, %. 5 

 (in text). 

 Rhabdammina grayiuloxa Eimeh and Fickerp, Zoitschr. Wies. Zool., vol. (io, 

 1899, p. 667. 



Description. — Test generally fusiform, tapering toward the ends, 

 internally with a tubular cliamber of nearly uniform diameter 

 running the whole length of the test; wall composed of fine sand 

 grains rather loosely cemented at the exterior, but more firmly fixed on 

 the interior and at the ends, where the color is often a reddisJi brown, 

 interior smoothly finished, exterior often with foreign particles of 

 various sorts imbedded in the walls; apertures formed by the open 

 ends of the tubular chamber, often obscured by a loose filling of 

 fine sand particles. 



Length, up to 7 mm. 



Distrihution. — Brad}'^ described A. granulosa from a single Olud- 

 lenger station, No. 78, in 1,000 fathoms, east of the Azores. It is 

 also known from the Bay of Biscay (Rhumbler); from three Alba- 

 tross stations off the east coast of the United .States, in 1,685-1,781 

 fathoms (Flint). In the Pacific it is known from the eastern por- 

 tion off Panama, in 1,201 fathoms (Goes), and off Japan (Cushman). 



In the Albatross Atlantic material I have examined it has been 

 noted at 25 stations, ranging in depth from 390 to 2,045 fathoms, 

 bottom temperatures from 36.8° to 41° F. These stations range 

 from slightly north of Cape Ilatteras to Nova Scotia, with no records 

 at all in all the material south of this region. 



Astrorhiza granulosa — material examined. 



Cat. 

 No. 



0593 

 9694 

 9595 



9590 

 9597 

 9598 

 9599 

 *(.00 

 JGO! 

 9ti02 



9ua3 



9604 

 9251 

 9252 

 9253 

 9254 

 9255 

 9250 

 9257 

 9258 

 9259 

 9200 

 9261 

 9202 

 9263 



