46 



BULLETIN 11, UNITED STATES NATIONAL MUSEUM. 



the Malay Archipelago. It has usually been found in rather deep 

 water. 



Figs. 47-49.— Pelosina rotundata. x 20 (after Brady). 4S, transverse section. 

 PELOSINA CYLINDRICA H. B. Brady. 



Pelosina cylindrica H. B. Brady, Rep. Voy. Challenger, Zoology, vol. 9, 1884, p. 236, 

 pi. 26, figs. 1-6 — Egger, Abh. kon. bay. Akad. Wiss. Munchen, vol. 18, 1893, 

 p. 253, pi. 4, figs. 1, 2.— Rhumbler, Arch. Protistk., vol. 3, 1903, p. 239, fig. 72 

 (in text). 



Description. — Test elon- 

 gate, cylindrical, straight 

 or slightly curved, of near- 

 ly uniform diameter, ends 

 rounded, aperture at one 

 endj circular; wall thick, 

 composed of loosely aggre- 

 gated shell fragments or 

 foraminiferal tests with a 

 mud base, outside irregu- 

 lar, rough, interior smooth- 

 ly finished, interior chiti- 

 nous; color dark gray, but 

 varying much according to 

 the constituents of the test, 

 being almost white when 

 many foraminiferal tests 

 are included in the wall. 



Length up to 12 mm.; 

 diameter about 2 mm. 



Distribution. — The Chal- 

 lenger expedition obtained 

 this species at three North Pacific stations, 237, 244, 246, in 



JBH 



Figs. 50-51.— Pelosina cyxindrica. x 10. 



