60 BULLETIN 161, UNITED STATES NATIONAL MUSEUM 



This distinctive species occurs in only a few of the deeper samples 

 from the southwest Pacific. The species is characterized by its 

 relatively large size, compact form, and coarsely cancellated wall. 

 As has been previously discussed (Todd, 1964, p. 1080), the separation 

 between Globigerina conglomerata and G. venezuelana Hedberg seems 

 a haphazard and artificial one, based chiefly on whether the adult 

 whorl is composed of 3 or 4 chambers; therefore, I believe it best to 

 combine them as one species under the earlier name. 



G. conglomerata, described from the Pliocene of Kar Nicobar [Car 

 Nicobar Island], has been found in plankton tows in the Pacific and, 

 as a fossil, appears to extend back into the Eocene. It seems to have 

 a worldwide distribution in the equatorial belt. 



GLOBIGERINA DIGITATA Brady 



Globigerina digitata Brady (part), 1884, Rep. Voy. Challenger, Zoology, vol. 9, 

 p. 599, pi. 80, figs 6-10 (not pi. 82, figs. 6, 7). — Phlegee, Parker, and Peir- 

 son, 1953, Rep. Swedish Deep-Sea Exped., vol. 7, Sediment Cores, no. 1, p. 12, 

 pi. 1, figs. 9, 10.— Parker, 1958, Rep. Swedish Deep-Sea Exped., 1947-48, 

 vol. 8, fasc. 2, no. 4, p. 276, pi. 5, fig. 8. 



Hastigerinella digitata (Brady). — Bolli, Loeblich, and Tappan, 1957, U.S. 

 Nat. Mus. Bull. 215, p. 32, pi. 5, fig. 3. 



Globorotalia (Hastigerinella) digitata (Brady). — Banner and Blow, 1959, Paleon- 

 tology, vol. 2, pt. 1, p. 16, text fig. 4e. 



Globorotalia (Beella) digitata (Brady). — -Banner and Blow, 1960, Micropaleon- 

 tology, vol. 6, no. 1, p. 26, text fig. 11. 



This is apparently a rare but cosmopolitan species in the equa- 

 torial regions of the oceans. It is not easily confused with other 

 species, being recognized by its rather high-spired coiling on one side, 

 while on the other side its rather large and high-arched aperture ex- 

 tends to and beyond the peripheral plane so that the aperture is often 

 visible as a sharp indentation into the outline of the test. 



Only single specimens of this distinctive species were found in 

 seven of the present samples. 



GLOBIGERINA EGGERI Rhumbler 



Plate 24, Figure 2 



Globigerina eggeri Rhumbler, 1901, Nordische Plankton, pt. 14, Foraminiferen, 



p. 19, text fig. 20. — Bradshaw, 1959, Contr. Cushman Found. Foram. Res., 



vol. 10, p. 35, pi. 6, figs. 5, 8-10. — Banner and Blow, 1960, Contr. Cushman 



Found. Foram. Res., vol. 11, p. 11, pi. 2, fig. 4. 

 Globigerina dubia Brady (not Egger), 1884, Rep. Voy. Challenger, Zoology, vol. 9, 



p. 595, pi. 79, fig. 17. 

 Globigerina cretacea Brady (not d'Orbigny), 1884, Rep. Voy. Challenger, Zoology, 



vol. 9, p. 596, pi. 82, fig. 10. 

 Globigerina subcretacea Lomnicki, 1901, Akad. Umiej. Krakowie, part 2, 



p. 57.— Cushman, Todd, and Post, 1954, U.S. Geol. Surv. Prof. Paper 260-H, 



p. 368, pi. 91, fig. 1. 



