248 



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

 turritd, truncatd, solidd, liris spiralibus obtiisis undidatd, striis 

 longitudinalibus confertissimis sculptd, oleoso-micante, cinnamo- 

 meo-fuscd. ; suturd profundd, simplice ; anfractibus superstomate 

 4, convexis, regularitcr accrescentibus, ultimo rotundato ; aperturd 

 subverticali, fere circulari; peristomate albo, duplice : interna 

 expansiusculo, adnata, externa continua, harizontaliter expanse, 

 anfraciui penultima brevissime adnata, superne angulato. — Oper- 

 culum 1 



Long. \2\, diam. 6 mill. 

 Hab. ? 



27. Cyclostoma pallidum, Pfr. C. testd perforata, avata- 

 turritd, truncatd, tenui, lineis elevatis spiralibus et cotfertissimis 

 longitudinalibus (hie illic irregulai'ibus, subconfluentibus) minute 

 decussatd, pallide corned, lineolis rufis interruptis obsolete pictd ; 

 suturd profundd, subsbnplice ; anfractibus superstomate 4, con- 

 vexis, ultimo rotundato; aperturd verticali, ovali-circulari ; peri- 

 stomate duplice, interna albo, parrecto, expansiusculo, externa 

 dilatato, harizontaliter patente, concentrice striata, anfractui pen- 

 ultima breviter adnata, margine sifiistro angustiore. — Operculum 

 terminate, testaceum, anfractibus 'S^, oblique striatis, marginibus 

 subliberis. 



Long. 1 7^, diam. 8|- mill. 

 Hab. Almendares prope Havana. 



28. Cyclostoma Cumanense, Pfr. C. testd perfaratd, tvrrito- 

 ohlongd, truncatd, tenui, langitudinaliter confertim plicatd, sericed, 

 pellucidd, cameo -lutescente, maculis castaneis fasciatim dispositis 

 ornatd; suturd plicis excurrentibus confertim subcrenatd; an- 

 fractibus superstomate 5, siibcanvexis, ultima basi rotundato, antice 

 breviter saluta, dorso carinato ; aperturd subverticali, ovali, superne 

 subangulatd ; peristomate libera, simplice, undique vix expanso. — 

 Operculum cartilagineum, planum, paucispirum. 



Long. 15, diam. 7^ mill. 



29. Cyclostoma TURRiTUM, Pfr. C. testd subperfaratd,turritd, 

 truncatuld, lineis elevatis spiralibus et longitudinalibus regulariter 

 clathratd, albidd, lineolis rufis interruptis cinctd ; suturd subpra- 



fundd, confertim denticulatd; anfractibus superstomate 6, convexi- 

 usculis, regulariter accrescentibus , ultima rotundato; aperturd verti- 

 cali, ovali, intus fulvidd; peristomate subduplice: interna cantinuo, 

 expansiusculo, externa superne angulatim dilatata, margine dextro 

 vix patente, calumellari et sinistra excisa. — Operculum^ 



Long. 16, diam. 7 mill. 



Hab. Honduras (Mr. Dyson). 



30. Cyclostoma diaphanum, Pfr. C. testd subperforatd, ob- 

 lango-turritd, truncatd, tenuiusculd, lineis elevatis spiralibus con- 



fertis, costulisque illas transgredientibus filaribus confertioribus 

 decussatd, diaphand, unicolore albidd; spird elangatd ; suturd 

 irregulariter crenatd ; anfractibus superstomate 4^, convexis, sub- 



