100 



BULLETIN 71, UNITED STATES NATIONAL MUSEUM. 



visible from either side, chambers somewhat inflated, usually six to 

 seven in the last-formed coil, distinct ; aperture simple, at the ventral 

 border of the apertural face, sometimes with traces of a lip present; 

 wall composed of fine sand, usually with a reddish cement, but very 

 variable in color, from white to brown. 



Diameter 2-2.5 mm. 



Distribution.— The only record for this species in the North Pacific 

 is that of the Challenger, station 238, in 3,950 fathoms, east of Japan. 

 This is the deepest sounding of the Challenger expedition from which 

 material was examined. 



HAPLOPHRAGMOIDES TRULLISSATA (H. B. Brady). 



Trochammina trullissata H. B. BitADt, Quart. Journ. Micr. Sci., vol. 19, 1879, p. 

 56, pi. 5, figs. 10 a, b, 11; Rep. Voy. Challenger, Zoology, vol. 9, 1884, p. 342, 

 pi. 40, figs. 14-16 (not fig. 13).- — Haeusler, Abh. schweiz. pal. Ges., vol. 17, 

 1890, p. 64, pi. 10, figs. 9, 11.— Egger, Abh. kon. bay. Akad. Wiss. Munchen, 

 vol. 18, 1893, p. 265, pi. 5, figs. 25, 26 [?].— Chapman, Proc. Zool. Soc. London, 

 1895, p. 18.— Goes, Bull. Mus. Comp. Zool., vol. 29, 1896, p. 33.— Millett, 

 Journ. Roy. Micr. Soc, 1899, p. 364. 



Description. — Test spirally coiled, made up of about three coils, not 

 completely involute, somewhat umbilicate, so that the chambers of 



."»WTv..,. 



b a 



FlG. 148.— HAPLOPHRAGMOIDES TRULLISSATA. X "5. SPECIMEN FROM 2,875 FATHOMS, AlbatTOSS STA- 

 TION H2916. a, side view; b, apertural view of same specimen. 



early 'coils are visible at the center, usually about nine chambers in 

 the last-formed coil, chambers subglobular, aperture slightly above 

 the base of the apertural face of the chamber, elongate, test smoothly 

 finished exteriorly; color yellowish or reddish brown. 



Diameter, 1-1.25 mm. 



Distribution. — This species is recorded from six widely distributed 

 Challenger stations in the North Pacific, varying in depth from 1,850- 

 3,950 fathoms. Goes records it from three Albatross stations in the 

 eastern Pacific at the entrance to the Gulf of California and off 

 Panama in 978-1,218 fathoms. In the material I have examined, it 

 has occurred at Albatross station H2916 in 2,878 fathoms near the 

 Hawaiian Islands; at two Nero stations, 1014 in 1,987 fathoms, and 

 1085 in 2,360 fathoms, both north of Guam. In this same general 

 region at Alert station 1169 the species was found in 2,113 fathoms. 



