4, 1993 
t <i 
250 
callo nitido junctis—Operculum membranaceum, planum, cereum, 
arctispirum,. 
Diam. maj. 20, min. 16, alt. 10 mill. 
Hab. Madagascar. 
35. CycLostoMa RustTicuM, Pfr. C. testa laté umbilicatd, de- 
pressd, subdiscoided, solidd, spiraliter confertim liratd, non nitente, 
sordide albidd, pallide fusculo irregulariter variegatd ; spird parum 
elevatd, vertice submucronato ; anfractibus 44, convexiusculis, ad 
suturam subdepressis, ultimo terete, antice descendente ; aperturd 
diagonali, subcirculari, intus carned; peristomate simplice, breviter 
expanso, marginibus callo brevi junctis, supero repando.—Oper- 
culum? 
Long. maj. 174, min. 133, alt. 74 mill. 
Hab. 2 
36. CycLosroma pstLomituM, Pfr. C. testd mediocriter umbili- 
catd, depresso-conoided, soliduld, virenti-luted, via nitiduld, lineis 
spiralibus subtilissimis, piloso-elevatis crebris obscurioribus cinctd ; 
spird breviter conoided, obtusd ; suturd subcanaliculatd ; anfrac- 
tibus 4, convexis, ultimo terete, non descendente ; aperturd fereé 
verticali, subcirculari, intus albidd ; peristomate simplice, acuto, 
marginibus fere contiguis, callo brevi junctis—Operculum ? 
Diam. maj. 15, min. 11, alt. 8 mill. 
Hab. Venezuela. 
37. CycLosTtoMaA aLatum, Pfr. C. testd laté umbilicatd, conoideo- 
depressd, soliduld, oblique confertim et inequaliter costulatd, vir 
diaphand, albidd, fasciis angustis pallidissime corneis variegatd ; 
spird brevissime conoided, acutiusculd ; suturd simplice ; anfrac- 
tibus 4, modice convezis, ultimo subterete, antic vix descendente, 
lilaceo-nebuloso ; aperturd diagonali, subcirculari, intus lilaceo- 
fusculd ; peristomate subduplice, latere dextro et basali connato, 
expanso, externo superné alatim dilatato, latere sinistro subreflexo. 
—Operculum? — 
Diam. maj. 16, min. 13, alt. 8 mill. 
Hab. 8. Yago de Cuba. 
38. CycLosToMA SCALARE, Pfr. C. testd angusté umbilicatd, co- 
noided, soliduld, oblique striatuld, nitiduld, corneo-luted ; spird 
elatd, scalari, apice acutd ; suturd profundd ; anfractibus 43, per- 
convexis, ultimo terete, antice subsoluto; aperturd obliqud, cir- 
culari, intus margaritaced; peristomate simplice, continuo, undique 
vir expansiusculo.—Operculum ? 
Diam. maj. 9, min. 7, alt. 65 mill. 
Hab. in insulis Philippinis. 
39. Cyctostoma (CycLopHorus) LuTESCENS, Pfr. C. testa 
umbilicatd, depresso-conoided, solidd, oblique filoso-striatd, sericed, 
fusco-lutescente; spird breviter conoided, apice acutiusculd; suturd 
profundd, simplice; anfractibus 44, convexis, rapide accrescentibus, 
