Zoological Society. 



10. Cyclostoma MARGARITA, Pfr. C. testd perfotatd, globoso- 

 conicd, soUduld, Ixvigatd, nitiduld, rubella - succined ; spird conicd, 

 apice acutiusculd, sanguined; anfractibus 5, convexiusculis, ultimo 

 subrotundato ; aperturd parum obliqud, ovali ; peristomate inter- 

 rupto, simplice, recto, margine columellari perarcuato, subincraS' 

 sato. — Operculum ? 



Diam. maj. 7, niin. 6, alt. 6 mill. 



Hab. in insula Rapa Oceani pacifici, 



,11. Cyclostoma (Leptopoma) latklimbatum, Pfr, C. testd 

 perforata, globoso-conicd, tenui, minute spiraliter striatd et lineis 

 obtusis elevatis, subaquidistantibus cinctd, diaphand, parum nitidd, 

 albd, maculis et fasciis pallide Julvis variegatd; spird turbinatd, 

 acutiusculd ; anfractibus 5, convexiusculis, ultimo rotunduto, medio 

 lined acute elevatd subcarinato ; umbilico angusto, vix pervio ; 

 aperturd obliqud, sub cir cu lari ; peristomate duplice, albo : interna 

 interrupta, breviter porrecto, marginibus callo tenui junctis, ex- 

 terna undique cequaliter dilatata, angulatim patente, supra perfo- 

 rationem exciso. — Operculumi 



Diam. maj. I/, min. 13, alt. II mill. 



Hab. in insulis Philippinis. 



12. Cyclostoma (Leptopoma) regulare, Pfr. C. testd an- 

 gustissime perforata, conicd, globosd, tenui, lineis appraximatis 

 superne aqualibus sculptd, interstitiis spiraliter confertim striatd, 

 diaphand, albidd, maculis fulvidis regulariter tessellatd ; spird 

 turbinatd, apice acutd, pallide corned, anfractibus 5J, convexius- 

 culis, ultimo convexiore, infra liram periphericam inflato, obso- 

 letius lirato ; aperturd obliqud, lunato-circulari ; peristomate inter- 

 rupta, tenui, albo, breviter patente, margine columellari basi sub- 

 angulatim dilatata. Operculumi 



Diam. maj. \2^, min. 10, alt. 10 mill. 



13. Cyclostoma (Leptopoma) sericatum, Pfr. C. testd per- 

 foratd, glaboso-conicd, tenui, pellucidd, sericed, lineis obliquis, 

 subdistantibus sculptd, superne lineis 4-5 elevatis, spiralibus 

 munitd, hyalina-albidd, liris carneis {vel undique vialacescenti- 

 fulvd, basi pallidiore) ; spird turbinatd, acutd, apice nigricante ; 

 anfractibus 5, superis parum convexis, ultimo inflato, subcarinato, 

 infra carinam fascia unicd castaned ornato, basi liris spiralibus non- 

 nullis obsoletiaribus sculpta ; umbilico angustissimo, nan pervio ; 

 aperturd parum obliqud, subemarginata-circulari ; peristomate 

 simplice, interrupta, tenui, horizontaliter patente, margine colu- 

 mellari medio sublingulatim dilatata. — Operculumi 



Diam. maj. 12, min. vix 10, alt. 9 mill. 

 Hab. in insula Borneo (Taylor). 



14. Cyclostoma pleurophorum, Pfr. C. testd umbilicatd, 

 globaso-turbinatd, tenui, langitudinaliter canferte striatd et costulis 

 filaribus, praminentiaribus sculptd, diaphand, parum nitidd, albido- 

 fulvescente ; spird turbinatd, apice acutiusculd, corned; suturd 

 costis denticulatd ; anfractibus 5, convexis, ultimo subterete, antich 



