TROPICAL PACIFIC FORAMINIFERA OF "ALBATROSS" 19 



oblique, forming an angle of about 45° with the horizontal; wall 

 distinctly perforate, ornamented by longitudinal costae, sharp and 

 high, few in number, usually one prominent one toward the periphery 

 at each side, with supplementary ones at the periphery; aperture 

 broadly oval, sometimes with a slight lip. Length, 0. 50-0. 75 mm.; 

 breadth, 0.25-0.35 mm.; thicloiess, 0.20-0.30 mm. 



This species was originally described by Brady from off the Philip- 

 pines, and there are very few records for the species, all of wliich are 

 found in the same general region. It has occurred rather abundantly 

 at only one station in our material, that from 3 fathoms, Viva Anchor- 

 age, Fiji. 



BOLIVINA SUBANGULARIS H. B. Brady var. LINEATA (Cushnian) 



Plate 6, Figures 5, 6 



Bolivinita suhangularis H. B. Brady var. lineaia Cushman, Contr. Cushman Lab. 

 Foram. Res., vol. 9, p. 77, pi. 8, figs. 1, 2, 1933. 



Variety differing from the typical in the wall, which is ornamented 

 with supplementary small costae in addition to the typical large ones. 



The types of this variety are from Levuka, Fiji, in 12 fathoms. It 

 also occurs in 3 fathoms, off Viva Anchorage, Fiji. 



BOUVINA RHOMBOIDALIS (Mlllett) 



Plate 6, Figures 7, 8 



Textularia rhomboidalis Millett, Journ. Roy. Micr. Soc, 1899, p. 559, pi. 7, 



fig. 4. — Sidebottom, Mem. Proc. Manchester Lit. Philos. Soc, vol. 49, No. 5, 



p. 8, pi. 2, fig. 2, 1905. 

 Bolivina rhomboidalis Cushman, Carnegie Inst. Washington Publ. 311, p. 28, 



1922; U. S. Nat. Mus. Bull. 104, pt. 2, p. 44, 1922.— Cole, Florida State Geol. 



Survey Bull. 6, p. 42, 1931.- — Heron-Allen and Earland, Discovery Reports, 



vol. 4, p. 356, 1932. — Bermudez, Mem. Soc. Cubana Hist. Nat., vol. 9, p. 



194, 1935. — Cushman, Cushman Lab. Foram. Res. Special Publ. No. 9, 



p. 138, pi. 18, fig. 7, 1937. 



Test generally triangular in front view, slightly longer than broad, 

 increasing in breadth from the rather bluntly pointed initial end to the 

 broad, somewhat obliquely truncate, apertural end, periphery oblique- 

 ly truncate; chambers numerous, distinct, very slightly inflated, 

 increasing rather uniformly in size as added; sutures distmct, some- 

 what oblique; wall rather coarsely perforate, otherwdse smooth; 

 aperture oval, somewhat elongate. Length, 0.40 mm. 



This species was originally described from the Malay Archipelago 

 by Millett. It has since been recorded from wddely separated regions. 

 Our specimens are from Rotonga and from Rangiroa. 



