FOKAMINIFERA OF THE ATLANTIC OCEAN. 



59 



LirUOTUB.\ LITUIFORMIS (H. B. Brady). 



Plate 12, figs. 1 and 2. 



Trochamminn Htui/ormis II. B. Brady, Quart. Joiini. Mitr. Soc, vol. 19, 1S79, 

 p. 59, pi. 5, fig. Ki; Rep. Voy. Challenger, Zoology, vol. 9, 1884, p. 342, ])1. 40, 

 figs. 4-7.— Flint, Rep. U. S. Nat. Mtis., 1897 (1899), p. 281, pi. 26, fig. 1.— 

 Chapman, The Foramimfera, 1902, p. 151, pi. 8, fig. /:,'. — Bagg, Proc. U. S. 

 Nat. Mus., vol. 34, 190{i, p. 128. 



Lituotuhn lUuiformis RnvyiBLER, Nachr. Koiigl. Ges. AViss. (iottingen, 1895, p. 84; 

 Arch. Prot., vol. 3, 1903, p. 279, fig. VZSa, b.—VvsuMW, Bull. 71, V. S. Nat. 

 Mus., pt. 1, 1910, p. 114, fig. 175. 



Description. — Test composed of a close-coiled early portion and 

 a later uncoiled portion, straight and tubular l)ut divided into (diam- 

 bers; chambers numerous, often somewhat indisti-nctly marked, of un- 

 equal length but of fairly uniform diameter; wall arenaceous with an 

 excess of cement, surface smooth; aperture rounckxl, at the end of 

 the tubular portion, in perfect specimens somewliat contracted from 

 the normal diameter of the tubular chamber; color yellowish ])i-()wn. 



Length up to 5 mm. 



Distribution. — This is rather a rare species recorded by Brady in 

 the Challenger report from but three stations, all in the Atlantic; 

 station 24, off Cidebra Island, West Indies, in 390 fathoms (713 

 meters); station 76, off the Azores, in 900 fathoms (1,646 meters), 

 and station 120, off Pernambuco, Brazil, in 675 fathoms (1.234 

 meters). Goes combines Trocliamminoides pfoteiis and this sj)ecies, 

 so his records are not available, except Albotros,^ 11215, fi'om which 

 there is materia] in the Goes collection. Flint's maleiiai was from 

 two Albatross stations in the northei'n part of the Gidf of Mexico, 

 D2394 and D2395 in 420 and 347 fathoms (768 and 835 meters), off 

 the west coast of Cuba. D2352 in 463 fathoms (847 meters) and oft' 

 Baliia, Brazil, D2760 in 1.019 fatlionis (1,864 meters). The Alba- 

 tross material I have had has been from tiie northern part of the 

 Gulf of Mexico and from both the eastern an<.l western ('arrild)ean. 



lAtuotuba lituiformis — material examined. 



