Zoological Society. 461 



elevatd, vertice submvcronato ; anfractibus A\, convexiusculis, ad 

 suturam svbdepressis, vltimo terete, antice descendente ; aperturd 

 diagonali, snbcirculari , intus earned ; peristomate simplice, breviter 

 expanso, marginibus callo brevi Junctis, svpero repando. — Oper- 

 culum I 



Long. maj. 1/^, min. 13^, alt. "^ mill. 



Hab. ? 



36. Cyclostoma psilomituji, Pfr. C. testd mediocriter umbili- 

 catd, depresso-conoided, soliduld, virenti-Iuted, vix nitiduld, lineis 

 spiralibus subtUiSsimis,piloso-elevatis crebris obscurioribvs cinctd; 

 spird breviter conoided, obtiisd ; suturd subcanaliculatd ; anfrac- 

 tibus 4, convexis, ultimo terete, nan descendente ; aperturd fer^ 

 verticali, subcirculari, intus albidd ; peristomate simplice, acuta, 

 marginibus fere contiguis, callo brevi junctis. — Operculum} 



Diam. maj. 15, min. 11, alt. 8 mill. 

 Hab. Venezuela. 



37. Cyclostoma alatum, Pfr. C. testd late umbilicatd, conoideo- 

 depressd, soliduld, oblique confertim et incequaliter costulatd, vix 

 diaphand, albidd, fasciis a?igustis pallidissitne corneis variegatd ; 

 spird brevissime conoided, acutiusculd ; stiturd simplice ; anfrac- 

 tibus 4, modice convexis, ultimo subterete, antice vix descendente, 

 Ulaceo-nebuloso ; aperturd diagonali, subcirculari, intus lilaceo- 

 fusculd ; peristomate subduplice, latere dextro et basali connato, 

 expanso, externa superne alatim dilatato, latere sinistra svbrefexo. 

 — Operculum } 



Diam. maj. 16, min. 13, alt. 8 mill. 

 Hab. S. Yago de Cuba. 



38. Cyclostoma scalare, Pfr. C. testd anguste umbilicatd, co- 

 noided, soliduld, oblique striatuld, nitiduld, corneo-luted ; spird 

 elatd. scalari, apice acuta ; suturd profunda ; anfractibus 4^, per- 

 convexis, ultimo terete, antice subsolttto ; aperturd obliqud, cir- 

 cular!, intus margaritaced ; peristomate simplice, continue, vndique 

 vix expansiusculo. — Operculum ? 



Diam. maj. 9, min. 7, alt. 6^ mill. 

 Hab. in insulis Philippinis. 



39. Cyclostoma (Cyclophorus) lutescens, Pfr. C. testd 

 umbilicatd, depresso-conoided, solidd, oblique filoso-striatd, sericed, 

 fusco-lutescente; spird breviter conoided, apice acutiusculd; suturd 

 profunda, simplice; anfractibus 4^, convexis, rapide accrescentibus, 

 ultimo non descendente ; umbilico mediocri, profunda; aperturd vix 

 obliqud, rotundato-ovali ; peristomate simplice, recto, aatto, con- 

 tinuo, breviter adnata, superne vix angulato. — Operculum mem- 

 branaceum, pallid e corneum, rectispirum, extus profundi concavvm. 



Diam. maj. 20, min. \d^, alt. 12 mill. 

 Hab. in Brasilia. 



40. Cyclostoma guttatum, Pfr. C. testd umbilicatd, depressd, 

 solidd, glabra, nitidd, late castaned, 7naculis albis subtriangulari- 



