DESCRIPTIVE CATALOGUE OF RECENT FORAMINIFERA. 291 



BULIMINA ACULEATA d'Orbigny. 

 (Plate 37, fig. 4.) 



Short, conical, triserial, slightly compressed on three sides, segments 

 somewhat inflated, the earlier ones bearing long slender spines, the 

 later ones sometimes smooth, sometimes with short spines or slight 

 protuberances. 



Localities. Near Aspinwall, Gulf of Mexico, southeast of Georges 

 Bank, coast of Brazil (stations 2144, 2377, 2392, 2394, 2530, 2763), 210 

 to 956 fathoms. 



BULIMINA INFLATA Seguenza. 

 (Plate 37, fig. 5.) 



Ovate, acuminate, the segments erect, short, and overlapping, th 

 overlapping edges of the segments crimped and sharply serrate. 

 Length, 0.4 mm. ($ inch). 



Localities. Gulf of Mexico, southeast of Georges Bank, south of 

 Block Island (stations 2377, 2398, 2530, 2584), 210 to 956 fathoms. 



Genus VIRGULINA. 



Test much elongated, with a tendency to become asymmetrically 

 biserial. 



VIRGULINA SCHREIBERSIANA Czjzek. 

 (PI ate 37, fig. 6.) 



Elongate, subcylindrical, slightly compressed on two sides, tapering 

 at both ends, extremities rounded, arrangement of segments irregularly 

 biserial, giving a twisted appearance to the shell; aperture a verti- 

 cal loop-shaped slit near the end of the last segment. Length, about 

 0.4 mm. (g^- inch.) 



Locality. Collected off Chesapeake Bay (station 2263), 430 fathoms. 



VIRGULINA SUBSQUAMOSA Egger. 



(Plate 37, fig. 7.) 



Elongate-oval, compressed, margins rounded; segments overlapping, 

 slightly inflated, arranged in two inequilateral, alternating series; 

 walls thin, tranparent, and finely perforated; aperture a loop-shaped 

 slit in the face of the last segment. Length, about 0.7 mm. (- 3 -V inch). 



Locality. Gulf of Mexico (station 2377), 210 fathoms. 



Genus BOLIVINA. 

 Test distinctly biserial, arrangement Textularian 



