TROPICAL PACIFIC FORAMINIFERA OF ALBATROSS 



37 



are circular in the transverse section in the typical form. Typical 

 specimens occur at the following localities: Off Nairai, Fiji, 24 

 fathoms; Rutavu; Rangiroa; and at the following Albatross Sta- 

 tions: H3853, Pakaka entrance to Apataki Lagoon, Paumotus, 613 

 fathoms; H3910, 1 mile off southwest point of Aid Aki, Paumotus, 

 377 fathoms; H3916, 1 mile off Pinaki Atoll, Paumotus, 486 fathoms; 

 H3983, half a mile off entrance of South Pass, Rongelap Atoll, 

 Marshall Islands, 400 fathoms. 



Table 8. — Spiroloculina ant ill arum — material examined 



1 Key to abbreviations is given in Table 1. 



SPIROLOCULINA ANTILLARUM d'Orbigny var. ANGULATA Cushman 



Plate 9, Figures 6-9 



Spiroloculina grata H. B. Beady (part) (not Terquem), Rep. Voy. Challenger, 

 Zoology, vol. 9, pi. 10, figs. 22, 23, 1884. 



Spiroloculina giata Terquem var. angulata Cushman, U. S. Nat. Mus. Bull. 71, 

 pt. 6, p. 36, pi. 7, fig. 5, 1917. 



Spiroloculina antillarum d'Orbigny var. angulata Cushman, U. S. Nat. Mus. 

 Bull. 100, vol. 4, p. 408, pi. 81, figs. 5 a, o, 1921 ; Carnegie Inst. Washington 

 Publ. 311, p. 62, 1922 ; Publ. 342, p. 55, pi. 20, fig. 2, 1924 ; Publ. 344, p. 80, 

 1926; U. S. Nat. Mus. Bull. 104. pt. 6, p. 43, pi. 9, figs. 4 a, b, 1929. 



Variety differing from the typical in the angular form of the 

 chamber instead of cylindrical. 



This variety is very much more abundant than the typical form and 

 shows considerable variation, from specimens that are but slightly 

 angled to those that are very much so. In some specimens there is a 

 contortion of the chambers, and one is here figured (pi. 9, fig. 7) in 

 which the chambers have become arranged three in a coil resembling 

 Flintina. The distribution of the variety is given in the following 

 table : 



