242 



13. Descriptions of Forty-three New Species of Cyclosto- 



macea, from the collection of hugh cuming, esq. 



By Dr. L. Pfeiffer. 



1 . Cyclostoma Himalayanum, Pfr. C. testd umbilicatd, glo- 

 boso-turbinatd, soliduld, costis spiralibus obtiisis, 10-12, lineisque 

 interjacentibus obsoletis sculptd, sub epidennide decidud, . . . . al- 

 bidd; spird turbinatd, supertie rttfd, acutiusculd ; anfractibus 5, 

 convexiusculis, ultimo ventroso, circa umbilicum angustum, infun- 

 dibuliformem vix compresso ; aperturd subverticali, circulari ; 

 peristomate simplice, continuo, breviter adnata, fusco-igneo, sub- 

 incrassato, breviter expanse, superne suhangulato. — Operculum 1 



Diam. maj. 48, min. 39, alt. 35 mill. 

 Hab. in Himalaya. 



2. Cyclostoma euchilum, Pfr. C testd umbilicatd, turbinato- 

 subglobosd, soliduld, oblique confertim striatd, lineis impressis 

 distantioribus obsolete clathratuld, albidd, violaceo-fusco etfulvo 

 variegatd, parum nitidd; spird turbinato-elevatd, apice acuti- 

 usculd ; anfractibus 5|-, co7ivexis, ultimo rotundato, ad suturam 

 subdepresso, medio albo-fasciato, basi confertim et valide spirali- 

 ter sulcata ; umbilico mediocri, infundibulifarmi ; aperturd vix 

 obliqud, subangulata-circulari, intuspurpurascenti-carnea-micante ; 

 peristomate subcantinua, alba, marginibus superne dilatatis, callo 

 subemarginato junctis, dextro et basali latissimis, fornicatim revo- 

 lutis, si7iistro angustato, vix reflexo. — Operculum ? 



Diam. maj. 43, min. 32, alt. 28 mill. 

 Hab. Madagascar. 



3. Cyclostoma crassum, Pfr. C. testd umbilicatd, turbinato- 

 globosd, crassd, striatd et minute malleatd, rubello-fulvd, fasciis 

 et lineis interruptis castaneis ornatd; spird turbinatd, obtusius- 

 culd; anfractibus 5, convexis, ultimo superne turgido, infra medium 

 carind funiformi et fascid latiare nigricante circumdato, basi sub- 

 planulato, circa umbilicum angustum, infundibuliformem subcom- 

 presso ; aperturd obliqud, subangulato-rotundd, intus rubelld; 

 peristomate duplice : interna continuo, externa crasso, expanse, 

 ad anfractum penultimum breviter interrupto.- — Operculum ? 



Diam. maj. 27, min. 23, alt. 18 mill. 



Hab. Liew Kiew, et var. minor in insula Ibyat (Bashee group). 



4. Cyclostoma expansum, Pfr. C. testd umbilicatd, turbinato- 

 subglabosd, solidiusculd, spiraliter confertim striatd, apacd, superne 

 castanea et albido variegatd ; spird canoided, apice acutiusculd ; 

 anfractibus 5 , convexiusculis, ultimo convexiare, dilatato,peripherid 

 subcarinato, basi fasciis angustis castaneis ornatd ; timbilico an- 

 gusto, pervio ; aperturd subverticali, fere circulari; peristomate 

 subsimplice, continuo, breviter adnata, pallide aurantiaco, undique 

 teqtialiter angulutim plano-expanso, margine subrevoluto. — Oper- 

 culum 1 



Diam. maj. 30, min. 22, alt. 19 mill. 

 Hab 1 



