BULIMULUS-ANTILLEAN. 43 



rated by a simple and superficial suture, regularly and quite rap- 

 idly widening ; last whorl large, oval, obtuse below, nearly as high 

 as the spire. External surface covered with fine, irregular stride of 

 growth, which by their number and arrangement give the shell the 

 luster of satin, by reflected light. Coloration varies but little, 

 the thin and transparent shell is of a quite dark uniform brown, 

 slightly more intense at the apex ; a whitish line at the suture. 

 Aperture oval-oblong, russet- white within, dilated in front, con- 

 tracted behind, but varying in form with age and in different speci- 

 mens. Peristome whitish, quite thick, outwardly reflexed, of the 

 same width almost throughout its extent. Columella short, dilated 

 at base, whitish ; parietal callus semitransparent, rather thin. Um- 

 bilical perforation very small, partly covered by the columellar re- 

 flexion. Large individuals measure: alt. 30, diam. 15 mill. 



Guadelupe and St. Vincent (Fer.) ; Guadelupe at Capesterre, 

 around the town (Mattei) ; Baillif, riviere des Peres (E. Marie) ; 

 St. Martin (Van Rijersma). 



Helix (Cochlogena) limnoides FER., Prodr., p. 53, no. 393 (no 

 description). Bulimus limnoides DESH., in Lam., An. s. Vert., viii, 

 p. 260 ; in Fer., Hist., p. 71, pi. 142, f. 9, 10. PFR., Monogr., ii, 

 p. 224 ; Conchyl. Cab., p. 235, pi. 63, f. 3, 4. B. lymnoides REEVE, 

 Conch. Icon., pi. 70, f. 510. Bulimulus limnceoides ALB. Buli- 

 mulus limnoides MAZE, Journ. de Conch., 1883, p. 20 ; J. de C., 

 1890, p. 26. E. A. SMITH, Proc. Malac. Soc. Lond., i, p. 305. 



Probably does not occur outside of Guadelupe and dependent 

 islets. I have not seen this species. It seems to be well distin- 

 guished from B. chrysalis Pfr., which is perhaps its nearest ally, by 

 the wider expansion of the lip. The figures and description are 

 from Ferussac-Deshayes. 



B. CHRYSALIS (Pfeiffer). PL 9, figs. 50, 51. 



Shell perforate, ovate-elongate, thin, pellucid, minutely striatu- 

 late, corneous-chestnut. Spire conic, acute ; whorls 7 to 8, rather 

 flat, the last about three-sevenths the total alt. Columella subverti- 

 cal, rather straight, a little twisted. 



Aperture colored like the outside, oval ; peristome simple, acute, 

 the right margin narrowly expanded, columellar margin dilated, 

 spreading. Alt. 22, diam. 10 mill.; aperture 10 mill, long, 6 wide. 



Guadelupe (Petit de la Saussaie) ; Martinique, at Fort-de-France, 

 151 meters alt., and Massif des Pitons, 510-650 meters alt. (Maze). 



