NO. 5 CUSHMAN AND MCCULLOCH : SOME BULIMINIDAE 271 



Length 0.40-0.50 mm; breadth 0.17-0.20 mm; thickness 0.12-0.15 

 mm. 



This species, described from the Pliocene of Italy, is present at the 

 following stations: 634, 636, 648, all in the Mediterranean Sea. The 

 present specimens show the gradation of this form into Siphogenerina. 



Distribution. — The bottom samples were collected at Port Said, 

 Naples and Gibraltar in 7 to 90 fms. 



Uvigerina sp. A 

 Plate 34, Fig. 8 



Test small, fusiform, greatest breadth a little above the middle; 

 chambers distinct, inflated, rapidly increasing in size so that the last two 

 whorls comprise most of test ; sutures deeply incised, curved ; wall smooth, 

 polished, sometimes with faint traces of costae at the base of the later 

 chambers; aperture at the end of a short, stout neck, surrounded by a 

 phialine lip. 



Length 0.40-0.47 mm; diameter 0.18-0.20 mm. 



This species differs from U. canariensis d'Orbigny in the chambers 

 less rapidly increasing in size so that the last whorl makes up proportion- 

 ately much less of the test than it does in U. canariensis ; in the faint 

 costae; and in its smaller size. 



Four specimens of this species were found at Station 200. 



Distribution. — Tangola Tangola, Mexico. 



Uvigerina sp. B 

 Plate 34, Fig. 9 



Test short and stout, chambers few, large, inflated; sutures deep; 

 wall thin, translucent, ornamented by fine, sharp, rather widely spaced 

 spines with the addition in some specimens of a few serrate costae on 

 the early portion of the test; aperture at the end of a prominent neck 

 with a narrow lip. 



Length 0.50-0.55 mm; diameter 0.35-0.42 mm. 



This species seems to be undescribed. It occurs at only two stations: 

 1150 and 1243, and with too few specimens available for adequate de- 

 scription. 



Distribution. — These stations are Point Dume in 47 fms and off 

 Long Point, Catalina Island in 228 fms. 



