80 BRACHYPODELLA, S. STR. 



and not noticeably denticulating the suture. Whorls convex, 

 the last very shortly free in front, strongly carinate beneath, 

 concave above the keel. Aperture rounded in general outline, 

 obtusely angular at the outer and basal margins; the peris- 

 tome being rather widely reflexed except at the outer angle. 

 Axis slender, straight and simple. 



Length 11.5, diam. 2.7 mm., whorls 16% ; the plug at 11. 



Length 7.8, diam. 2.4 mm., whorls 11 ; truncate. 



Length 10, diam. 2.5 mm., whorls 11 ; truncate. 



Guadeloupe (Fer., B. Sharp, et al.) : Pointe-a-Pitre, morne 

 a 1'eau, Capesterre, Petit Bourg, etc.; the Saintes, Terre de 

 haut, anse Mirre, Saint Martin, Saint Bartholomew; and 

 Mariegalante, Grand-Bourg, ravine Bambara (Maze). Mar- 

 tinique: Fort de France (Maze). St. Vincent: a dry rocky 

 hillside in the forest above Chateaubelair, leeward side, at 

 about 1000 ft. (H. H. Smith). 



Helix (CoModina) antiperversa FER., Prodr., p. 65, no. 

 509 (no descr.) ; Histoire, pi. 163, f. 5, 6. Clausilia a., DESH. 

 in Lam., An. s. Vert., viii, p. 215. POT. et MICH., Galerie, i, 

 p. 177, pi. 17, f. 19, 20. Brachypodella antiperversa BECK., 

 Index, p. 89. Cylindrella collaris PFR., Wiegmann's Archiv 

 f . Naturg., 1840, i, p. 41 ; Monogr., ii, p. 375 ; C. Cab., p. 41, 

 pi. 4, f . 29-34 ; and in Phil., Abbild., i, p. 182, pi. 1, f . 10, and 

 var. brevicollis, p. 183, f. 9 (1844). C. collaris Fer., MAZE, 

 Journ. de Conchyl., xxii, 1874, p. 165 (Martinique) ; xxxi, 

 1883, pp. 22, 44, 48 (Guadeloupe) ; 1890, p. 27 (Saintes). 

 E. A. SMITH, Proc. Malac. Soc. Lond., i, p. 310 (St. Vincent). 

 SOWERBY, C. Icon., pi. 11, f. 95. ? Pupa truncatula Sow- 

 ERBY, Genera, f. 7. C. bicanaliculata Pfr., ALBERS, Die Hel., 

 1860, p. 39 (teste Pfr.). 



A common species in Guadeloupe; apparently less so in 

 Martinique, and also recorded from St. Vincent. Other 

 records for antiperversa must be looked upon with suspicion. 

 I am unable to see any difference between shells from the two 

 islands first named. It is much more finely sculptured than 

 B. costata of Barbados. The largest entire specimen I have 

 seen is slightly over 12 mm. long, and has 17!/2 whorls; the 

 smallest, 9% mm. long with 15% whorls. Usually when the 



