320 REPORT OF NATIONAL MUSEUM, 1897. 



Localities. — Off coast of Georgia and off Unalaska (stations 2416, 



2842). 



Genus UVIGERINA. 



Segments arranged in a more or less regular spire around the long 

 axis of the shell, rarely biserial. Aperture simple, usually surrounded 

 by a phialine lip; often forming a prolonged terminal tube. 



UVIGERINA TENUISTRIATA Reuss. 

 (Plate 68, fig. 1.) 



Oval, elongate; sutures not well marked; arrangement of segments 

 obscure; surface ornamented with numerous very fine longitudinal 

 strire; aperture tubular, with a phialine lip, the tube sometimes bear- 

 ing two or three rings of shell substance. Length, about 0.6 mm. 

 (^ inch). 



Locality. — Off Oarysfort Light, Florida (station 2641), 60 fathoms. 



UVIGERINA PYGM^A d'Orbigny. 

 (Plate 68, fig. 2.) 



Oval, more or less elongated, symmetrical ; surface rough with thin, 

 prominent, interrupted costal ; aperture tubular with a phialine lip. 

 The principal feature distinguishing this species from U. tenuistriata is 

 the prominence of the costre. 



Locality. — Off Cape Fear (station 2679), 782 fathoms. 



UVIGERINA ANGULOSA Williamson. 

 (Plate 68, fig. 3.) 



Small, elongate, compressed on three sides, the sides nearly equal, 

 the angles sharp, surface roughened with more or less prominent costae. 

 Length, about 0.4 mm. (-^ inch). 



Localities. — Exuma Sound and Panama Bay (stations 2530, 2805), 956 

 and 51 fathoms. 



UVIGERINA ASPERULA Czjzek. 

 (Plate 68, fig. 4.) 



Oval or ovate, more or less elongated, rounded at the initial end, the 

 surface roughened with short spines, sometimes set in rows and tending 

 to run together into short costae, at other times, especially on the termi- 

 nal segment, irregularly and closely distributed; aperture phialine on 

 a tubular neck. Length, about 0.5 mm. (-^ - inch). 



Locality. — Off the coast of Brazil (station 2760), 1,019 fathoms. 



UVIGERINA ASPERULA, variety AMPULLACEA Brady 



(Plate 68, fig. 5.) 



Elongate, irregularly flask-shaped, the base being formed by the early 

 segments arranged spirally; the later segments tending to become rec- 

 tilinear and inflated, the final one being surmounted by a long tubular 



