li■ORAMl^:lFElJA OF THE ATLANTIC OCEAN. 



55 



Gomera, Canary Islands, 620 fathoms, and off Sierra Leone, 1,750 

 fathoms. I have had material from the Alhaiross dredgings from 10 

 stations, 7 of these from the region south of Cape Cod from off Long 

 Island to the region south of Georges Banks and the other three 

 stations from the Gidf of Mexico oft' the mouth of the Mississippi 

 and off Yucatan. 



The species is also known from Antarctic Ice Barrier (Brady, 

 Challenger), east coast of New Zealand (Brady, Chapman), from the 

 North Pacific (Brady, Goes, Cushman), from the Indian Ocean west 

 of Australia (Egger), and from the Antarctic (Pearcey). 



The species is somewhat variable in the character of the test wall 

 according to the bottom conditions from which it takes the material 

 for its building purposes. 



Pelosirui ci^liadrim— material examined. 



Cat. 



No. 1 



9724 

 9723 

 972.5 

 972»i 

 9727 

 9728 

 9729 

 9369 

 9370 

 9371 



Coll. of— 



No. of 

 speci- 

 mens. 



U..S.N.M.' 

 U.S.N.M. 

 U.S.N.M. 

 U.S.N.M. 

 U.S.N.M. 

 U.S.N.M. 

 U.S.N.M., 

 U.S.N.M. 

 U.S.N.M. 

 U.S.N.M. 



Station. 



Locality. 



D2042. 

 D2052. 

 D2150. 

 D2204. 

 D2208. 

 D2383. 

 1)2385. 

 D2531. 

 D2581. 

 D2713. 



39 33 

 39 40 

 13 34 

 39 30 



39 33 

 28 32 

 28 51 



40 42 

 39 43 

 38 20 



00 N.; 68 26 45 \V, 

 05 N.; 09 21 25 W, 

 45 N.; 81 21 10 W, 

 .30 N.; 71 44 30 W. 

 00 N.; 71 10 15 W, 

 00 N.; 88 00 00 \V, 

 00 N.; 88 18 00 W. 

 00 N.; 00 33 00 W. 

 00 N.; 71 34 00 W, 

 00 N.; 70 08 30 W. 



"'°^- lure. 



Character of 

 bottom. 



'F. 



1,555 i 38.5 

 1,098 45 



382 ! 45.7; 



728 

 1,178 

 1.181 



730 



S52 



394 

 1,859 



39.1 

 38.4 

 39.8 

 40.1 

 34.4 



glob, oz 



glob, oz 



wh. crs. s. . . 



br. m 



gn. m 



br. gn. m 



g.v. m 



gy.m 



iVbuudancc. 



Few. 



Few. 



Rare. 



Rare. 



Rare. 



Common. 



Few. 



Few. 



Rare. 



Rare. 



PELOSINA ROTUNDATA H. B. Brady. 



Plate 21, fige. 4 C. 



Pelosirui rotundata IT. B. Brady, Quart. Journ. Micr. Sci., vol. 19, 1879, p. ol, 

 pi. 3, fige. 4, 5; Rep. Voy. Challenger, Zoology, vol. 9, 1884, p. 236, pi. 25, 

 figs. 18-20.— Egger, Abh. bay. Akad. Wise. Miinchen, vol. 18, 1893, p. 254, 

 pi. 11. fig. GO. -Mii-r.ETT, Journ. Roy. Micr. Soc. 1899, p. 249, pi. 1, fig. 1.— 

 Rhu-Mbler, Arch. Prot., vol. .5, 1903, p. 2.39, fig. 71 (in text).— Chapman, 

 Trans. New Zealand Inst., vol. 38, 1905. p. 83.— Cushman, Bull. 71, U. S. 

 Nat. Mus.. pt. 1. 1910, p. 45, figs. 47-49 (in text). 



Description. — Test flask shaped or pyriforiu with an elongated 

 tubular neck, which is often membranaceous, of brownish, chitinous 

 material, continuous with the lining of the test, remainder of the wall 

 thick, composed of foraminiferal tests or other coarse material with 

 a ground mass of fine mud loosely cemented, interior smoothly 

 finished with a brownish, chitinous hning extended to the apertural 

 neck, chamber smaU compared to the size of the test on account of 

 the thick wall, undivided; aperture at the end of the tubular neck, 

 rounded. 



Diameter, up to 2 mm. 



