FORAMINIFERA OF THE ATLANTIC OCEAN, 



41 



These specimens resemble very much Brady's figure in the Chal- 

 lenger Report (pi. 53, fig. 14), which he refers to Bolivina nohilis 

 Hantken. A comparison of these with Hantken's original figures 

 shows that the two are probably different species. Brady's speci- 

 mens were all from the South Pacific, and our specimens from the 

 Tortugas are probably identical or very closely related to those of 

 the South Pacific. 



BOLIVINA PULCHELLA (d'Orblgny). 



Plate 7, fig. 4. 



Sagrina pulchdla d'Orbigny, in De la Sagra, Hist. Fis. Pol. Nat. Cuba, 1839, 



"Foraminifferes," p. 150, pi. 1, figs. 23, 24. 

 Bolivina costata Goes (not d'Orbigny), Svensk. Vet. Akad. Handl., vol. 19, no. 4, 



1882, p. 71, pi. 4, figs. 129-132. 

 Bolivina caribaea Goes (not d'Orbigny), Bull. Mus. Comp. Zool., vol. 29, 1896, 



p. 48. 

 Bolivina pulchella Cushman, Publ. 311, Carnegie Inst. Wash., 1922, p. 25, pi. 



1, figs. 8, 9. 



Description. — Test small, about one and one-half times as long as 

 wide; chambers comparatively few, increasing rapidly in size as added, 

 initial end subacute, apertural end broad and rounded, chambers 

 fairly distinct, ornamented by a series of short, longitudinal costae, 

 the outer angles of the chambers somewhat extended, forming a 

 somewhat toothed edge to the test; sutures indistinct, very slightly 

 depressed, wall thin, translucent, very finely punctate, over the 

 Sutures somewhat more opaque; aperture an elongate oval opening. 



Length 0.15-0.25 mm. 



Distribution. — Typical specimens were obtained from the lagoon of 

 the Dry Tortugas, Florida, southwest of Brilliant Shoal, in 7^ fathoms 

 (13 meters) . In addition it has occurred at several Albatross stations, 

 all but one in the Caribbean, the exception being off the Carolina 

 coast. This species is a small, but very definite one, both in shape 

 and ornamentation. Goes evidently had this species from the Carib- 

 bean, first as B. costata, and later under B. caribaea. D'Orbigny's 

 specimens were from the shore sands of Cuba. 



Bolivina pulchella — material examined. 



53568—22- 



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