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tus; aperlura subcircularis, basi axin excedens; perist. 

 simplex, continuum, vix expansiusculum. Long. 12, 

 diam, 8 mill. Ap. 5 mill. longa. 



52. Cyclost. violaceum Pfr. (369.) - T. sub- 

 obtecte perforata, ovato-turrita, truncata, solidula, lineis 

 elevatis spiralibus & confertioribus longitudinalibus ob- 

 longo-granulala, baud scabra, non nitens, saturate violaceaj 

 spira turrita, truncata; anfr. superst. 4Y 2 convexi, ultimus 

 rotundatus; apcrtura subverticalis, angulato-ovalis; perist. 

 duplex, album, continuum: internum expansiusculum, ad- 

 natum, externum margine dextro subincrassalo, anguste 

 angulatim patente, columellari in laminam sinuosam, perfo- 

 rationem occultantem, nee claudentem dilatato. Long. 

 20, diam. It mill. Ap. 7 1 /, mill, longa, 5 l / 4 lata. 



53. Cyclost. canescens Pfr. (373.) T. sub- 

 perforata, oblongo-turrita, truncatula, solida, lineis longi- 

 tudinalibus & spiralibus elevatis regulariter clathrata, pa- 

 rum nitida, griseo-albida; spira elongata; sutura tuber- 

 culis confcrtis albis crenata ; anfr. superst. 7 vix con- 

 vexiusculi, ultimus basi attenuatus, circa perforationem 

 obsoletam distinctius spiraliter sulcatus; apertura vertica- 

 lis, angulato-ovalis, intus fusco-carnea; perist. duplex: 

 internum vix porrectum, externum undique breviter ex. 

 pansum, superne angulatum, anfractui penultimo breviter 

 adnatum. Long. 20, diam. 7 mill. Ap. 5 mill, longa? 

 4 lata. 



54. Cyclost. ovatum Pfr. (375.) T. obtecte 

 perforata, oblongo-ovata , truncata, tenuis, longitudinaliter 

 confertim plicatula, sericea, fusco-cornea, vel pallidissime 

 cornea, maculis rufis seriatim dispositis ornata; spira 

 ovato-conica , truncata; sutura levis, irregulariter tuber- 

 culato-crenata; anfr. sup. 5 convexiusculi , ultimus paulo 

 angustior, basi obsolete spiraliter sulcatus; apeitura ver- 

 ticalis, rolunda(o-ovalis; perist. fusculum, duplex: internum 

 breviter porrectum, externum undique dilatatum, campa- 



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