AKT. 3 SOUTH AMEEICAN FOEAMINIFERA CUSH MAN AND PARKER 21 



shows the same general variation of form that is seen in West Indian 

 material and also in that from the Miocene of both Florida and 

 California. 



Genus SIPHONINA Reuss, 1849 



SIPHONINA PULCHRA Cushman 



Siphonina pulchra Cushman, U. S. Nat. Mus. Bull. 104, pt. 8, p. 69, 1931. 



There were two specimens of this species noted occurring in one 

 of the stations in Rio de Janeiro Harbor. 



Family CASSIDULINIDAE 

 Genus PULVINULINELLA Cushman, 1926 



PULVINULINELLA EXIGUA (H. B. Brady) 



Pulvinulina exigua H. B. Brady, Rep. Voy. Challenger, Zoology, vol. 9, p. 696, 

 pi. 103, figs. 13, 14, 1884. 



Brady's small species evidently belongs to the genus PulvinuUnella- 

 Its aperture is in the plane of coiling and is elongate. It is interest- 

 ing to find that the two figured specimens in the Challenge?' report 

 are one from the South Atlantic and the other marked " Southern 

 Ocean." We have numerous specimens of very small size, comparing 

 very well with Brady's figures, from several stations in the Falkland 

 Islands. 



Genus CASSIDULINA d'Orbigny, 1826 



CASSIDULINA CRASSA d'Orbigmy 



Plate 4, Figxjres 6 a, & 



Cassidulina crassa Cushman, U. S. Nat. Mus. Bull. 104, pt. 3, p. 124, 1922. 



D'Orbigny's types of this species came from the general region of 

 our collections, and very typical specimens occur in the material 

 from Port William, Falkland Islands. We have also other speci- 

 mens that are very similar, and perhaps identical, from the stations 

 in Rio de Janeiro Harbor. There are no sizable specimens present 

 in any of the collections, but from Earland we have received some 

 very fine large specimens of this same general form from off the 

 Falklands in deeper water. 



