458 Zoological Society. 



cucullatim elevato, turn emarginato et anfi'actuipenultimo adnata. — 

 Operculum testaceum, planum, anfractibus 3, marginibus lamelloso- 

 liberis. 



Long. IG, diam. 7 mill. 



/(3. T. minor, crenulis sutura confertis, acutis. 



Hah. Yucatan, var. /3. in India occidentali. 



23. Cyclostoma HiSTRio, Pfr. C.testd profunda rimatd,ovato- 

 conicd, solidiusculd, longitudinaliter confertim plicatd, parvm ni- 

 tidd, albidd, strigis latis obliquis, angulosis, fuscis pivtd ; spird 

 elato-conicd, vix truncatuld ; suturd supe^me minute denticulatd, 

 anfractuum inferiorum subsimplice ; anfractibus A\, convexis, ul- 

 timo rotundalo, basi ultra axin subproducto ; aperturd subobliqud, 

 subcirculari, intus nitidd,fulvidd, nebulosd ; peristomate lateritio, 

 duplice : interna cantinuo, late expnnso, appresso, externa latiore, 

 harizontaliter patente, superne sinuato-angulato, ad anfractmn 

 penultimum breviter interrupto. — Operculum^. 



Long. 20, diam. 1 1 mill. 

 Hah. in insula, Jamaica. 



24. Cyclostoma integrum, Pfr. C. testa perforatd, turriid, 

 tenuiusculd, integrd, lineis obsolete elevatis spiralibus et costulis 

 confertis longitudinalibus (tertid vel quartd qudvis validiore) sub- 

 decussatd, fulvidd, fasciis interruptis rufis cingulatd; spird regu- 

 lariter turritd, apice obtusiusculd ; sutura subcanferte denticulatd; 

 anfractibus 1, convexis, 2 primis l(Evigatis, ultimo rotundata, 

 antrorsum breviter soluto, vix desccndente, basi rotundata, fasciis 

 2—3 continuis rufis ornato ; aperturd vix obliqud, ovali ; peri- 

 stomate subdupUcalo : interna continue, adnata, externa patente, 

 superne subangulato-dilatato, turn emarginato, latere columellari 



- undulato. — Operculum cartilagineum, planum, paucispirum. 

 Long, 12, diam. 5 mill. 

 Hab. in India occidentali. 



25. Cyclostoma harpa, Pfr. C. testd breviter rimatd, oblongo- 

 turritd, tenuiusculd, plicis longitudinalibus chordiformibus sub- 

 distantibus munitd, cinnamomea- earned, haud nitente, lineis rufis 

 strigatim interruptis ornatd; spird turritd, integrd, sursum nigro- 

 violaced, apice obtusd ; suturd profundd, plicis prominentibus sub- 

 crenatd ; anfractibus 6, convexis, ultimo rotundata ; aperturd ver- 

 ticali, ovali-subcirculari ; peristomate rubella, duplice : interna 

 expansiusculo, appresso, externa undique vix dilat at o -patente, 

 anfractui penult ima breviter adnata. — Operculum^ 



Long. 12, diam. 6 mill. 



Hab. Almendares piope Havana. 



26. Cyclostoma pingue, Pfr. C. testd umbilicatd, oblonga- 

 turritd, truncatd, solidd, liris spiralibus obtusis undulatd, striis 

 longitudinalibus confertissimis sculptd, oleosa-micante, cinnama- 

 meo-fuscd ; suturd profundd, simplice ; anfractibus superstamate 

 4, convexis, regulariter accrescentibus, ultimo rotundata ; aperturd 

 subverticali, fere circulari ; peristomate alba, duplice : interna 



