DESCRIPTIVE CATALOGUE OF RECENT FORAMINIFERA. 287 



BIGENERINA PENNATULA Batsch. 

 (Plnte 32, fig. 2.) 



Oblong, rounded at both ends, dififeriug from B. capreolus only in the 

 more arching- form of the textulariau segments, and the greater num- 

 ber (four or five) of segments in the linear series. 



Locality, — Old Providence Island (station 2150), 382 fathoms. 



Genus GAUDRYINA. 



Early segments triserial (Yerneuiline) ; aperture either textulariau 

 or situated in a short terminal neck. 



GAUDRYINA PUPOIDES d'Orbigny. 

 (Plate 32, tig. 4.) 



A small, subconical, symmetrical shell, about one-fifth of its length 

 at the apex being formed of segments arranged triserially, the remain- 

 ing portion composed of slightly infiated segments in double, alter- 

 nating series; structure calcareous; surface smooth; aperture at the 

 inner margin of the final segment. Length, about 0.825 mm. (;/„ inch). 



Localities. — Oft' Nantucket Shoals, and southeast of Marthas Vineyard 

 (stations 2041, 2568), 1,608 and 1,781 fathoms. 



GAUDRYINA BACCATA Schwager. 

 (Plate 32, fig. 5.) 



Differs from 6^. pupoides in that it is larger, less symmetrical, and the 

 segments more inflated. It is especially characterized by the tendency 

 to distortion produced by the occasional unsymmetrical outgrowth of 

 one or more segments. Length, about 2 mm. ( jV inch). 



Localities. — Oft' Nantucket Shoals, south of Marthas Vineyard, off 

 Block Island (stations 2040, 2221, 2570, 2584, 2586), 328 to 2,226 fathoms. 



GAUDRYINA SUBROTUNDATA Schwager. 

 (Plate 33, fig. 1.) 



Subcylindrical, tapering at the initial end; sutures depressed; aper- 

 ture central, near the inner margin of the final segment; texture vari- 

 able, the smaller specimens being comparatively fine and smooth, the 

 larger coarse and rough. Length, 1 to 5 mm. {.h-; to \ inch). 



Localities. — Specimens have been preserved from eight stations in the 

 North and South Atlantic and the Gulf of Mexico (stations 2150, 2385, 

 2394, 2400, 2679, 2751, 2760, 2763), 169 to 1,019 fathoms. 



GAUDRYINA FILIFORMIS Berthelin. 

 (Plate 33, fig. 2.) 



Long, slender, tapering, smooth, the triserial portion very short, the 

 biserial chambers numerous and symmetrically arranged; sutures well 

 marked. Length, about 1.5 mm. {-^ inch). 



Locality. — Off' west coast of Cuba (station 2352), 463 fathoms. 



