86 



BULLETIN 71, UNITED STATES NATIONAL MUSEUM. 





Description. — Test composed of a few fusiform chambers with long 



slender connections in a straight line or irregular, usually not more 



than three chambers found together, 



wall of coarse sand grains, but rather 



smoothly cemented, thin. 



Length of three chambered speci- 

 mens, 5 mm. 



Distribution. — The Challenger ob- 

 tained this species from four North Pa- 

 cific stations, 1,875-2,050 fathoms, be- 

 tween Japan and 180°. Goes records 

 it from three Albatross stations off the 

 west coast of Mexico and Central Amer- 

 ica, station D3419, 772 fathoms; D 

 3399, 1,740 fathoms; D3375, 1,201 

 fathoms. I have found single cham- 

 bers in material from the stomachs of 

 Holothurians taken at Albatross sta- 

 tion D3603 in 1,771 fathoms, in Ber- 

 ing Sea; also single chambers at Nero 

 station 1012, in 1,932 fathoms, north 

 of Guam. The figured specimen is from 

 Albatross station D3375. 



Goes speaks of this material as 

 "more globiform" than the specimens 

 figured by Brady, but the material of Goes that I have examined 

 seems very typical, consisting of ten single chambers and the one 

 three-chambered specimen figured here. The slender connections 

 between the chambers are very easily broken, and complete speci- 

 mens are very rare. 



REOPHAX BACILLARIS H. B. Brady. 



Reophax bacillaris H. B. Brady, Quart. Journ. Micr. Sci., vol. 21, 1881, p. 49; 

 Rep. Voy. Challenger, Zoology, vol. 9, 1884, p. 293, pi. 30, figs. 23, 24.— de 

 Amicis, Nat. Sic, vol. 14, 1895, p. 72, pi. 1, fig. 17. — Chapman, Proc. Zool. 

 Soc. London, 1895, p. 15.— Goes, Bull. Mus. Comp. Zool., vol. 29, 1896, 

 p. 27.— Flint, Rep. U. S. Nat. Mus., 1897 (1899), p. 274, pi. 18, fig. 3.— 

 Millett, Journ. Roy. Micr. Soc., 1899, p. 254, pi. 14, fig. 12. 



Description. — Test elongate, regularly tapering, usually with an 

 angle near the basal portion, composed of a large number (sometimes 

 as many as thirty) of short chambers, earlier ones often less distinct 

 than the later ones, aperture small, usually at the end of a very short 

 neck-like protuberance; color gray. 



Length up to 5 mm. 



Distribution. — The only published records for the North Pacific are 

 two stations from the eastern tropical Pacific recorded by Goes, 



Fig. 119.— Reophax 

 distans. X 40. 



Fig. 120.— Reophax 

 bacillaris. x 15. 



