Zoological Society. 461 



elevatd, vertice submvcronato ; anfractibus 4^, convexiusailis, ad 

 siUiiram siibdepressis, ultimo terete, anlice desccndente ; aperturd 

 diagonali, subcirculari, intus earned; peristomate simpUce, breviter 

 expanse , marginibus callo brevi junctis, supcro repando. — Oper- 

 culum 1 



Long. maj. \7\, min. \o\, alt. 7^ mill. 



Hab. ? 



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

 catd, depi-esso-conoided , soliduld, virenti-luted, vix nitiduld, lineis 

 spiralibus subtiUssimis,piloso-elevatis crebris obscurioribus cinctd; 

 spird breviter conoided, obtusd ; suturd subcanaliculatd ; anfrac- 

 tibus 4, convexis, ultimo terete, non descendente ; aperturd fere 

 , j^ verticali, subcirculari, intus albidd; peristomate simpUce, acuta, 

 marginibus fere contiguis, callo brevi junctis. — Operculum} 



Biam. maj. 15, min. II, alt. 8 mill. 



Hab. Venezuela. 



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



^''" depressd, soliduld, oblique conferti^n et incequaliter costulatd, vix 



"" ■ diaphand, albidd, fasciis angustis pallidissime cornels variegatd ; 



"""^^^ spird brevissime conoided, acutiusculd ; suturd simpUce ; anfrac- 

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

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

 fusculd ; peristomate subduplice, latere dextro et basali connato, 



.<\n.i expanso, externa superne alatim dilatato, latere sinistra subrejlexo. 



,, ,\ 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, cornea-luted ; spird 

 elatd, scalari, apiceacutd; suturd profundd ; anfractibus 4^,per- 

 convexis, ultima terete, antice subsoluto ; aperturd abliqud, cir- 

 culari, intus margaritaced ; peristomate simpUce, cantinuo, undique 

 vix expansiusculo. — Operculum ? 



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

 Hab. in insulis Philippinis. 



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

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

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

 profundd, simpUce; anfractibus 4^, convexis. rapide accresccntihus, 

 ultimo non descendente ; umbiUco mediocri, profunda; aperturd vix 

 obliqud, rotundato-ovali ; peristomate simpUce, recta, acuta, con- 

 tinue, breviter adnata, superne vix angitlata. — Operculum mem- 

 branaceum, pallide corneum, rectispirum, cxtus profundi concavum. 



Diam. maj. 20, min. 15^, alt. 12 mill. 

 Hab. in Brasilia. 



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

 solidd, glabra, nitidd, late castaned, maculis albis subtriangulari- 



