56 



20. C. psilomitum Pfr. (137.) T. umbilicata, 

 depresso- conoidea, solidula, virenti-lutea, vix nitidula, li- 

 neis spiralihus subtilissimis filoso-elevatis crebris obs- 

 curioribus dncta; spira breviter eonoidea, obtusa; sutura 

 subcanaliculata; anfr. 4 convexi, ultimus teres, non de- 

 scendens; umbilicus mcdiocris, profundus; apertura fere 

 verticalis, subcircularis, intusalbida; perist. simplex, acu- 

 tum, marginibus fere contiguis, callo brevi junctis. 

 Diam. maj. 15, min. 11, alt. 8 mill. Ap. 7 mill, longa. <<^ 



21. C. ponderosum Pfr. (139.) T. late umbi- 

 licata , conoideo-depressa , crassa , ponderosa, subtiliter & 

 oblique malleato-rugulosa, olivaceo-fuscula; spira breviter 

 conoidea, obtusa ; anfr. 5 parum convexi, celeriter accres- 

 ceutes, ultimus latus, subdepressus, ad peripheriam obtuse 

 funiculato-carinatus; apertura obliqua, angulato- ovalis, 

 intus alba, nitida; perist. crassum, rectum, subcontinuum, 

 superne angulato- dilalatum, margine columellari perar- 

 cuato. -- Diam. maj. 36, min. 30, alt. 20 mill. jU*utf*<*-* 



22. C. Dysoni Pfr. (141.) T. umbilicata , conoi- 

 deo-orbiculata, solida, pliculis confertis undulatis, subcon- 

 fluentibus sculpta, fusco-olivacea, pallidius strigata & ob- 

 solete fasciata; spira conoidea, obtusula; anfr. 4V a con- 

 vexiusculi, celeriter accrescentes, ultimus rotundatus; um- 

 bilicus mediocris, conicus; apertura fere verticalis, angu- 

 lato-subcircularis, intus coerulescens, nitida; perist. sim- 

 plex, rectum, superno angulatum, breviter adnatum, mar- 

 gine dextro declivi, columellari subdilatato - patente. 

 Diam. maj. 27, min. 22, alt. 16 mill. A p. 14 mill, longa, 

 13 lata. }fc v^^fa**^ 



23. C. disculufi Pfr. (144.) T. umbilicata, de- 

 pressa, discoidea, solidiuscula, nitida, alabastrina; spira 

 planissima; anfr. vix 4 convexiusculi, ad suiuram im- 

 pressam striati, ultimus teretiusculus, subdepressus, in 

 umbilico lato distinciius striatus, antice brevissime solu- 



