1910.] NATURAL SCIENCES OF PHILADELPHIA. 521 



teeth weak, the upper palatal plica very minute, basal plica absent 

 or excessively weak. 



Bifidaria rhoadsi Pils. 



Near Mandeville. New to Jamaica. The specimens are smaller 

 than the types from Miami, Florida, measuring, length 1.5, diam. 

 .85 mm. 



Vertigo (Bothriopupa) tenuidens C. B. Ad. 



Around Mandeville and at Somerset. This species differs from 

 V. variolosa of Florida by its rather more robust contour and strong 

 upper palatal plica. Probably Bothriopupa will be removed from 

 Vertigo on account of its long, entering parietal lamella; yet it does not 

 seem to belong to Bifidaria. 



VERONICELLIDiE. 



A species of Veronicella about 25 or 30 mm. long was seen under 

 stones, but none were collected. 



TRUNCATELLID^3. 

 Geomelania minor C. B. Ad. 



Wesley Mount Church, near William sfield; Benmore, Mandeville; 

 Somerset road and Somerset. 

 Geomelania gracilis (C. B. Ad.). 



Wesley Mount Church, near William sfield; Bloomfield and Ben- 

 more, Mandeville; Somerset. 

 Geomelania elegans C. B. Ad. 



Near Mandeville. 

 Geomelania (Scalatella) pygmaea (C. B. Ad.). 



Neighborhood of Mandeville. 

 Geomelania (Scalatella) microglypta n. sp. 



Near Mandeville. 



CYCLOPHORIDiE. 

 Aperostoma (Ptychocochlis) jamaicense (Sowerby). 



Benmore, Mandeville; King Edward's Flotel, woods opposite Cedar 

 Hill; Garrett's woods; Santa Cruz road, 2-4 miles southwest of 

 Mandeville; two miles out the Somerset road; ridge near Lincoln; 

 Somerset. Found everywhere. 

 Aperostoma (Ptychocochlis) varians (C. B. Ad.). 



King Edward's Hotel, woods opposite Cedar Hill, Garrett's woods, 

 Santa Cruz road, 2-4 miles west of Mandeville; 2 miles out the Som- 

 erset road; ridge near Lincoln; Somerset. 



