TROPICAL PACIFIC FORAMINIFERA OF "ALBATROSS" 21 



Zool., vol. 106, p. 453, pi. 5, fig. 6.— Bandy, 1954, U.S. Geol. Surv. Prof. 

 Paper 254-F, p. 137, pi. 30, fig. 1.— Bhatia, 1956, Contr. Cushman Found. 

 Foram. Res., vol. 7, p. 23, pi. 3, figs. 3-5. — Boltovskoy, 1957, Rev. Instit. 

 Nac. Invest. Ciencias Nat. y Mus. Argentino, Ciencias Geol., vol. 6, no. 1, 

 p. 59, pi. 10, fig. 5; 1959, Argentina Serv. Hidro. Naval, Publ. H1005, p. 91, 

 pi. 13, fig. 4. — Graham and Militante, 1959, Stanford Univ. Publ., Geol. 

 Sci., vol. 6, no. 2, p. 96, pi. 14, fig. 9. — Andersen, 1961, Louisiana Dept. 

 Cons., Geol. Bull. No. 35, pt. 2, p. 106, pi. 22, figs. 5, 6.— Todd and Low, 

 1961, Contr. Cushman Found. Foram. Res., vol. 12, p. 18, pi. 2, figs. 14, 15. 



Poroeponides cribrorepandus Asano and Uchio (ms.). — Uchio, 1952, Jap. Journ. 

 Geol. Geogr., vol. 22, p. 157.— Bandy, 1953, Journ. Paleont., vol. 27, p. 173, 

 pi. 24, fig. 1. — Cushman, Todd, and Post, 1954, U.S. Geol. Surv. Prof. 

 Paper 260-H, p. 360, pi. 89, figs. 24, 25.— Takayanaqi, 1955, Contr. Instit. 

 Geol. Paleo., Tohoku Univ., no. 45, pi. 2, fig. 19— Todd, 1957, U.S. Geol. 

 Surv. Prof. Paper 280-H, p. 290 (tbl. 4), pi. 93, fig. 9.— Graham and Milit- 

 ante, 1959, Stanford Univ. Publ., Geol. Sci., vol. 6, no. 2, p. 96, pi. 14, fig. 8. 



Sestronophora arnoldi Loeblich and Tappan, 1957, U.S. Nat. Mus. Bull. 215, 

 p. 229, pi. 73, fig. 5. 



This cosmopolitan species has been known under several names. 

 The above synonymy includes some of the Recent records of this 

 widely reported species that is known from at least as far back as 

 the Miocene. 



The species exists in two different forms that can be seen to be 

 related through a gradual transition from one to another as Resig 

 (1962) has so clearly illustrated. The two figured specimens show 

 the extremes of this transitional series. 



Specimens are rare in the present material and many of them 

 show evidence of wear or breakage. In most of the flat, wide-spread- 

 ing specimens typical of "Rosalina lateralis," one can observe the 

 compact "repandus"-iorm within the early whorls of the "lateralis" - 

 form. In both forms the dorsal surface is usually marked by limbate 

 and raised sutures. 



EPONIDES TUMIDULUS (Brady) 



Plate 7, Figure 1 



Truncatulina tumidula Brady, 1884, Rep. Voy. Challenger, Zoology, vol. 9, 



p. 666, pi. 95, fig. 8. 

 Eponides tumidulus (H. B. Brady). — Phleger and Parker, 1951, Geol. Soc. 



Amer. Mem. 46, pt. 2, p. 21, pi. 11, figs. 7, 8.— Parker, 1954, Bull. Mus. 



Comp. Zool., vol. Ill, no. 10, p. 529, pi. 9, figs. 19, 24. 



A single typical specimen of this minute species was found at 

 Albatross station H3791, 2287 fathoms, near the Marquesas Islands. 

 It is a high-spired form, having 5 chambers in the final whorl. The 

 chambers are inflated ventrally and the umbilicus is deeply depressed. 



