40 GEOLOGY AND PALEONTOLOGY OF THE WEST INDIES. 



Globigerina species. 

 (Plate 8, Figure 3.) 



A small species of Globigerina is very common in the sections of 

 rock specimens from Cuba. It occurred at station 7513, orbitoidal 

 limestone, outcrop where Palmer Trail joins Ocujal Trail; station 7516, 

 west end, Los Melones; and station 7521, limestone, top of Mogote 

 Peak; all collected by O. E. Meinzer. The figured specimen which 

 seems to be the same is from station 7664, north slope La Piedra, 

 northeast of Jamaica, northeast of Guantanamo, collected by N. H. 

 Dart on. 



Orbulina universa d'Orbigny. 



Orbulina universa d'Orbigny, in Barker, Webb, and Berthelot, Hist. Nat. Ilea Canaries 

 "Foraminiferes," p. 123, plate 1, fig. 1, 1839. 



Single specimens occurred in material from Zone A, Rio Gurabo, 

 and Bluff 2, Cercado de Mao, Santo Domingo. It is known also from 

 the Miocene of the Panama Canal Zone. 



Sphaeroidina dehiscens Parker and Jones var. immatura, new variety. 



(Plate 14, Figure 2.) 



The following is a description of this variety : 



Test exteriorly composed almost entirely of two visible chambers, with a 

 small portion of a third sometimes slightly showing; chambers spherical, walls 

 coarsely perforate, suture between the chambers very slightly fissure-like on 

 opposite sides, otherwise closed and simply depressed. 



Diameter 0.4 to 0.5 mm. 



All of the specimens from the Bowden marl seem to belong to this 

 species, but they are very constant in having the characters only 

 slightly developed, the usual separation of the chambers being barely 

 indicated and the division, instead of being a deep-cut fissure, is merely 

 a simple cut in the central part of the sutural region at either side. The 

 specimens also are very small, but are uniform in size and in general 

 characters. A number of specimens were obtained. 



Pullenia obliqueloculata Parker and Jones. 



Pullenia obliqueloculata Parker and Jones, Philos. Trans., vol. 155, p. 368, plate 19, figs. 4 a, 

 b, 1865; H. B. Brady, Rep. Voy. Challenger, Zoology, vol. 9, p. 618, plate 84, figs. 

 16 to 20, 1884; Flint, Rep. U. S. Nat. Mus., 1897, p. 324, plate 70, fig. 6 (1899); 

 Cushman, Bull. 71, U. S. Nat. Mus., part 4, p. 22, plate 10, fig. 3; plate 12, figs. 

 2, 3, 1914. 



This species is very rare in the marl from station 3461, gorge of 

 Yumuri River, Matanzas, Cuba, collected by T. W. Vaughan. It is a 

 very rare species in the fossil state. 



ROTALHD.E. 

 Discorbis orbicularis (Terquem). 



Discorbina orbicularis (Terquem), H. B. Brady, Rep. Voy. Challenger, Zoology, vol. 9, p. 647, 

 plate 98, figs. 4 to 8, 1884. 



A single specimen was found in the material from Bluff 3, Cercado 

 de Mao, Santo Domingo. 



