FORAMINIFEBA OF THE ATTLANTIC OCEAN. 



59^ 



DistHhution. — The only Albatross specimens I have had from 

 the Atlantic are from the Caribbean and from off the northeastern 

 coast of Brazil. It occurs at numerous stations in the Pacific in 

 fairly deep water. 



Lagena sulcata, var. apiculata — material examined. 



LAGENA TRIGONO-MARGINATA Parker and Jones. 



Plate 11, figs. 3, 4. 



Lagena trigono-marginata Parkek and Jones, Philos. Trans., vol. 155, 1S65, 

 p. 348, pi. 18, figs, la, b. — Kobeetson (in G. S. Brady and Robertson),. 

 Rep. Brit. Assoc, 1875, p. 190. — Wright, Proc. Belfast Nat. Field Club, 

 1876 (1877), App., p. 104. pi. 4, figs. 8a, 6.— H. B. Brady, Rep. Voy, 

 Challenger, Zoology, vol. 9, 1884, p. 482, pi. 61, figs. 12, 13.— Egger, Abb. 

 kon. bay. Akad. Wiss. Muuchen, CI. II, vol. 18, 1893, p. 336. pi. 10, figs. 

 54, 55. — Chapman, Journ. Linn. Soc. Zool., vol. 30, 1910, p. 410. — 

 Pearcey, Trans. Roy. Soc. Edinb., vol. 49, 1914, p. 1019. 



Lagena marginata Walker and Boys, var. trigono-marginata Balkwiix 

 and AVeight, Proc. Roy. Irish Acad., ser. 2, vol. 3, 1882, p. 548. 



Description. — Test triangular in transverse section, the three faces 

 somewhat convex, the angles marked by raised bands with a distinct 

 carina down the center of each ; wall otherwise smooth ; aperture cir- 

 cular, onh' slightly produced. 



-Length up to 0.30 mm. 



Distrihution. — I have found no specimens of this species from the 

 western Atlantic material, but have it from Nymph Bank, south 

 of Cork, Ireland, in 52 fathoms (95 meters), from material received 

 from Joseph Wright. There are records for the species from off 

 Funafuti, off New Amsterdam, and from Burdwood Bank. Brady's 

 records are from two Challenger stations off Raine Island, Torres 

 Strait, 155 fathoms (283 meters), and in the deep water of the North 

 Pacific, 2,300 fathoms (4,200 meters). He also gives it from two 

 Forcupine dredgings in the North Atlantic, off the west coast of Ire- 

 land, 90 and 1,3G0 fathoms (165 and 2,487 meters) . It is also recorded 

 from Dublin Bay (Balkwill and Wright), in the Estuank^ of the Dee 

 (Siddall), and off the coast of Yorkshire (Robertson). 



