TROPICAL PACIFIC FORAMINIFERA OF ALBATROSS 53 



Table 16. — Triloculina circularis — material examined 



1 Key to abbreviations is given in Table 1. 



TRILOCULINA LABIOSA d'Orbigny 



Plate 11, Figures 12 a-c 



Triloculina labiosa d'Obbigny, in De la Sagra, Hist. Fis. Pol. Nat. Cuba. 



" Foraminiferes," p. 178, pi. 10, figs. 12-14, 1839.— Cushman, U. S. Nat. 



Mus. Bull. 71, pt. 6, p. 70, 1917 ; Proc. XL S. Nat. Mus., vol. 59, p. 70, pi. 



16, figs. 13, 14, 1921; Carnegie Inst. Washington Publ. 311, p. 77, pi. 12, 



fig. 1, 1922 ; Publ. 344, p. 83, 1926 ; U. S. Nat. Mus. Bull. 104, pt. 6, p. 60, 



pi. 15, figs. 2, 3, 1929. 

 Miliolina labiosa H. B. Brady, Bep. Voy. Challenger, Zoology, vol. 9, p. 170, 



pi. 6, figs. 3-5, 1884. 



Test much broader than long, surface largely composed of the 

 two last-formed chambers; chambers often somewhat irregular; 

 periphery rounded ; surface smooth, but dull ; aperture crescentif orm, 

 with a somewhat triangular tooth, placed somewhat back from the 

 aperture. Diameter, 0.5-0.65 mm.; thickness, 0.2-0.35 mm. 



This somewhat irregular species, originally described by d'Or- 

 bigny from the West Indies occurs in these collections from Ran- 

 giroa; Eutavu; Hereheretue Island; off Fiji, 40 to 50 fathoms; at 

 Mokaujar Anchorage, Fiji ; and to the northward at Port Lotten, 

 Kersail, Caroline Islands. At all these stations the material shows 



