14 PROCEEDINGS OF THE NATIONAL MUSEUM vol. SO 



This species has been referred to B. elegantisshna by some authors 

 and is closely related to the form described by Millett from the 

 Malay Archipelago, as B. elegantisslma var. c077ipressa. The form 

 that Millett assigns to B. elegantissima is also very close to our 

 species. 



Genus BULIMINA d'Orbigny, 1826 



BULIMINA PATAGONICA d'Orbigny 



Pl.\te 3, Figure 14 



Bulimma pat agon ica d'Orbigny, Voyage dans rAin^rique M^ridionale, vol. 5, 

 pt. 5, " Foraminif^res," p. 50, pi. 1, figs. 8, t), 1839.— Cushman and 

 WiCKENDEN, Proc. U. S. Nat. Mus., vol. 75, p. 8, pi. 3, figs. 11 a, h, 1929.— 

 Cushman and Kellett, Proc. U. S. Nat. Mus., vol. 75, art. 25, p. 7, pi. 3, 

 figs. 4 a, h, 1929. 



There are a very few specimens that seem to be the same as that 

 described by d'Orbigny and that have been recorded in the above 

 references from the west coast of South America. The specimens 

 we have, one of which is here figured, show the irregularity of the 

 last-formed chambers, very similar to the type specimen figured by 

 d'Orbigny. This seems to be a characteristic feature of the species. 



BULIMINA MARGINATA d'Orbigny 



BuUmina marginata Cushman, U. S. Nat. Mus. Bull. 104, pt. 3, p. 91, 1922. 



There are a few specimens, all from the three stations in Rio de 

 Janeiro Harbor, that seem best referred to this species. They have 

 the small teeth along the margin definitely at the margin and not 

 above it, as in d'Orbigny's B. pidchella. 



Genus ENTOSOLENIA Ehrenberg, 1848 



ENTOSOLENIA COMPRESSA (d'Orbigny) 



Plate 3, Figure 10 



Oolina comprcsaa d'Orbigny, Voyage dans rA.merlque M<^ridionale, vol. 5, pt. 5, 

 " Foraminif&res," p. 19, pi. 5, figs. 1. 2, 1839. 



Under this specific name d'Orbignj^ described a compressed Lagena- 

 like form from the Falklands and the coast of Patagonia. He noted 

 that it is very rare. We have a very similar form, in which the pe- 

 riphery has a blunt, thickened keel and there is a definite internal 

 tube, placing this species in Entosolenia. Our specimens were from 

 the Falklands at Port Howard and Port William. 



