BULIMUS.— Plate LVIII. 



whorls somewhat rounded, longitudinally rudely 

 striated, columella broadly reflected, lip thin, simple ; 

 transparent horny. 

 Hab. Curiana, Venezuela (on Cacti) ; Dyson. 



Of a uniform horn colour with a peculiarly erect spire. 



Very similar to the last in colour and substance, Ijut 

 sufficiently distinguished in form. 



Species 393. (Mus. Dyson.) 



BuLiMUs Cacticolus. Bui. testa acuminato-oblongd, sttb- 

 veiitricosa, tenuissimd, mnbilicatd, anfraetiius septem, 

 subrotuiidis, obscure decussatim striatis, cohimelld 

 reflexd, labro tenui, simplici ; pellucido-corned. 

 The Cactus-inhabiting Bulimus. Shell acuminately 

 oblong, somewhat ventricose, very tliin, umbilicated, 

 whorls seven in number, somewhat rounded, obscurely 

 decussately striated, columella reflected, lip thin, 

 simple ; transparent horny. 

 Hab. Cmiana, Venezuela (on Cacti) ; Dyson. 



Species 394. (Mus. Cuming.) 

 Bulimus opalinus. Bui. testd pyramidaU, basi ainjuUild 

 et subplanatd, vix nmiilicatd, anfractibus octo, plauo- 

 convexis, minutissime decussatim striatis, volumelld 

 reflexd, labro paululum reflexo ,■ opalino-albd, immacu- 

 latd. 

 The opal Bulimus. Shell pyramidal, angulated and 

 slightly flattened at the base, scarcely umbilicated, 

 whorls eight in number, flatly convex, very minutely 

 decussately striated, columella reflected, lip a little 

 reflected ; opal white, unspotted. 

 SowERBY, Beechey's Voyage, p. 144. pi. 138. f S. 

 Hab. Brazil. 



Distinguished by its aciuninatcd Trochiform srowth and 

 pui-e opal white substance. 



