4 PROCEEDINGS OF THE NATIONAL MUSEUM vol.80 



QUINQUELOCULINA CANDEIANA d'Orbigny 



Plate 1, Figxxkes 10 a-c 



QumquelocuUna candeiana Cushman, U. S. Nat. Mus. Bull. 104, pt. 6, p. 27, 1929. 

 The only previous records for this species are those by d'Orbigny, 

 from the West Indian region, and later from the Tortugas and Porto 

 Rico. It is not surprising, therefore, to find the species in its typical 

 form at stations 1 and 2 in Rio de Janeiro Harbor. 



QUINQUELOCULINA LAMARCKIANA d'Orbigny 



Plate 1, Figures 7 a-c 



QuiiiquelocuUna lamarckiana Cushman, U. S. Nat. Mus. Bull. 104, pt. 6, p. 26, 

 1929. 



This species was found only at stations 1 and 8. It is common in 

 the West Indian region but is also widely distributed elsewhere. 

 Our specimens fit d'Orbigny's species, and it is apparent that his 

 Quinqueloculina Tnagellmiica is also a synonym of this species, prob- 

 ably representing a southward expansion of it into colder water. 



QUINQUELOCULINA ISABELLEI d'Orbigny 



Plate 1, Figures 11 a^c; Plate 2, Figures 2 a-c 



Quinqueloculina isabellei d'Orbigny, Voyage dans I'Am^rique M6rldionale, vol. 

 5, pt. 5, " Foraminferes," p. 74, pi. 4, figs. 17-19, 1839. 



Test about twice as long as broad but compressed, in end view the 

 lateral chambers projecting only slightly beyond the two outer 

 chambers, which are more or less in one plane; chambers distinct, 

 inflated; sutures distinct, depressed; wall smooth and glossy; aper- 

 ture large, with a slight lip and a very large tooth, which in side 

 view projects well above the outline of the chamber and in end view 

 nearly fills the opening. 



D'Orbigny's original material of this species was from the coast 

 of Patagonia. It occurs very well developed in the region of the 

 Falklands and also along the Argentine (Patagonian) coast. There 

 are much smaller specimens, which may possibly be variants of this 

 species, from the stations off the coast of Brazil, but the species is 

 only well developed in the colder waters to the south. The peculiar 

 ivory-white color, the glossy surface, and the contour of the chambers 

 will distinguish this species, which is apparently localized about the 

 southern coast of South America. 



