TROPICAL PACIFIC FORAMINIFERA OF "ALBATROSS" 69 



into the group of specimens not showing bifurcation of chambers or 

 bifocal concentration of spines. 



Family GLOBOROTALIIDAE 



Genus GLOBOROTALIA Cushman, 1927 



GLOBOROTALIA (TURBOROTALIA) FIJIANA (Cushman) 



Plate 27, Figure 5 



Eponides fijiana Cushman, 1933, Contr. Cushman Lab. Foram. Res., vol. 9, 

 p. 89, pi. 9, fig. 6. 



This species is represented by only six specimens (four from the 

 type locality, 12 fathoms at Nairai, Fiji, and two from 7 fathoms at 

 Rotonga), but all are alike and quite distinctive. 



None of the specimens show the apertural opening clearly; the 

 scalloped apertural edge originally described cannot now be confirmed. 

 It appears more likely that the aperture is a narrow elongate opening 

 extending from umbilicus to periphery. 



The distinct porosity and thinness of the wall of the entire test 

 suggests a planktonic rather than benthonic habit. It seems unlikely 

 that it will be found in the oceanic planktonic assemblages, but it 

 may be a floating form, like species of Tretomphalus, inhabiting 

 protected areas within atolls or behind coral reefs. 



The chambers are less globular than in Globigerina and more so 

 than in Globorotalia. The species is placed in the subgenus Turbo- 

 rotalia, which stands in the hiatus between these two planktonic 

 genera. The umbilicus is open and slightly depressed. The ventral 

 sutures are somewhat indented. The dorsal sutures are slightly 

 limbate, especially toward the center, and the outer whorl of chambers 

 tends to stand up around the central part of the dorsal surface. The 

 peripheral spines are little more than pinched-together, drawn-out 

 portions of the final whorl of chambers. 



GLOBOROTALIA HIRSUTA (d'Orbigny) 



Plate 27, Figure 6 



Rotalina hirsuta d'Orbigny, 1839, in Barker-Webb and Berthelot, Hist. 



Nat. ties Canaries, Paris, vol. 2, pt. 2, Foraminiferes, p. 131, pi. 1, figs. 37-39. 

 Globorotalia hirsuta (d'Orbigny). — Cushman, 1931, U.S. Nat. Mus. Bull. 104, 



pt. 8, p. 99, pi. 17, fig. 6. — Phleger, Parker, and Peirson, 1953, Rep. 



Swedish Deep-Sea Exped., vol. 7, Sediment Cores, no. 1, p. 19, pi. 4, figs. 1-4. 

 Pulvinulina canariensis d'Orbigny, sp. — Brady, 1884, Rep. Voy. Challenger, 



Zoology, vol. 9, p. 692, pi. 103, figs. 8, 9. 



Rare specimens referable to this species were found at only a few 

 isolated stations. They are distinguishable from Globorotalia pwictu- 

 lata, their closest relative, in their flattened and biconvex (rather 



