TROPICAL PACIFIC FORAMINIFERA OF "ALBATROSS' 



39 



distinct, liinbate, slightly depressed, more so in the later portion, in the 

 early portion oblique and nearly straight, later becoming sigmoid as 

 the chambers tend to become uniserial; wall coarsely perforate, the 

 perforations often in longitudinal lines and the surface with a few 

 short, weakly developed costae; aperture in the adult terminal, nar- 

 rowly elliptical, often with a slight, rounded lip. Length, up to 2.00 

 mm.; breadth, 0.30 mm.; thickness, 0.20 mm. 



The figured specimens are from off Nairai, Fiji, in 24 fathoms, where 

 the species is very common and well developed. It also occurs off 

 Levuka, Fiji, 12 fathoms; Viva Anchorage, Fiji, 3 fathoms; Mokaujar 

 Anchorage, Fiji; Vavau Anchorage, Tonga Islands, 18 fathoms; 

 Guam Anchorage, Ladrone Islands, 21 fathoms; Port Lotten, Kersail, 

 Caroline Islands, and at one Albatross station, II3840, lat. 17°21'00" S., 

 long. 149°15'00" W., in 1,585 fathoms, vol. m. Judged from the fact 

 that this is typically a shallow-water species probably these specimens 

 in the Albatross collections represent individuals carried by the cur- 

 rents and deposited in deeper water, a frequent occurrence about ocean- 

 ic islands. 



LOXOSTOMA ROSTRUM Cushman 



Plate 11, Figures 3, 4 



Loxostoma rostrum Cushman, Contr. Cushman Lab. Foram. Res., vol. 9, p. 82,. 

 pi. 8, figs. 13a, b, 1933; Cushman Lab. Foram. Res. Special Publ. No. 9, 

 p. 195, pi. 22, figs. 3, 4, 1937. 



Test small, elongate, about three times as long as broad, the early 

 portion rapidly expanding but the remainder of the test with the sides 

 nearly parallel, the last-formed chamber somewhat produced, periph- 

 ery broadly rounded; chambers fairly distinct, only slightly inflated 

 in the later portion, increasing rather rapidly in height toward the 



Table 18. — Loxostoma rostrum — material examined 



