TROPICAL PACIFIC FORAMINIFERA OF "ALBATROSS" 31 



Epistominella exigua (H. B. Brady).' — Phleger, Parker, and Peirson, 1953, 

 Rep. Swedish Deep-Sea Exped., vol. 7, Sediment Cores, no. 1, p. 43, pi. 9, 

 figs. 35, 36.— Parker, 1954, Bull. Mus. Comp. Zool., vol. Ill, no. 10, p. 533, 

 pi. 10, figs. 22, 23. 



This species is found rarely in many of the deeper water samples. 

 It is about equally biconvex with an entire periphery that is bluntly 

 angled. The sutures are straight, tangential, and flush on the dorsal 

 side and radial and slightly indented on the ventral. The wall is 

 smooth, highly polished, in some specimens nearly transparent, and 

 lacks ornamentation of any kind. 



It has been pointed out to me by Frances L. Parker (in litt., Feb. 5, 

 1962) that this deep-water species is distinguishable from its 

 shallow-water counterpart, Epistominella vitrea Parker, in the follow- 

 ing respects: 5 to 5% instead of 6 to 6% chambers per final whorl, 

 entire and more nearly angled periphery instead of rounded and 

 slightly lobulate periphery, and dorsal sutures straight, oblique, and 

 flush instead of slightly curved and slightly depressed as in E. vitrea. 



EPISTOMINELLA PULCHRA (Cushman) 



Plate 10, Figures 3, 4 



Pulvinulinella pulchra Cushman, 1933, Contr. Cushman Lab. Foram. Res., vol. 

 9, p. 92, pi. 9, fig. 10. 



This small and beautiful species was described originally from off 

 Nairai, Fiji, where it was found commonly. Its only other occur- 

 rences in the present material are both very rare: 21 fathoms, Guam 

 Anchorage in the Ladrone [Marianas] Islands, and 18 fathoms, Vavau 

 Anchorage. In addition, it has been reported from Eniwetok, both 

 in the Recent and in the Miocene. 



The species superficially resembles species of Siphonina. The coarse 

 pores and the small tubules radiating outward around the periphery, 

 making an impression of a crinkled periphery, suggest the genus 

 Siphonina, but the position of the aperture places the species in 

 Epistominella. 



EPISTOMINELLA TUBULIFERA (Heron-Allen and Earland) 



Plate 10, Figure 2 



Truncatulina tubulifera Heron-Allen and Earland, 1915, Trans. Zool. Soc. 

 London, vol. 20, p. 710, pi. 52, figs. 37-40.— Cushman, 1924, Carnegie 

 Instit. Washington, Publ. 342, p. 38, pi. 11, fig. 8. 



Epistominella tubulifera (Heron- Allen and Earland)/ — Cushman, Todd, and 

 Post, 1954, U.S. Geol. Surv. Prof. Paper 260-H, p. 365, pi. 90, fig. 20.— 

 Todd, 1957, U.S. Geol. Surv. Prof. Paper 280-H, p. 292 (tbl. 4), pi. 92, 

 fig. 1.! — Graham and Militante, 1959, Stanford Univ. Publ., Geol. Sci., 

 vol. 6, no. 2, p. 110, pi. 18, fig. 8. 



This rather bizarrely ornamented species appears, by the position 

 of its aperture, to belong in this genus. The last several chambers, 



