trice striatum, superue subangulatum , ad anfr. penult. 

 subemarginatum. Diam. maj. 13, min. 10, ali. 9 mill. 



34. C. alatum Pfr. (240.) — T. umbilicata, conoi- 

 deo-depressa, solidula, ol)lique confertim et inaequaliter 

 costulata, vix diaphana, albida, fasciis angustis [)allidissime 

 corneis variegata ; spira brevissime ^onoidea, acuiiuscula; 

 sulura simplex; anfr. 4 modice convexi, ultimus subteres, 

 antice vix descendens, lilaceo-nebulosus; umbilicus latus, 

 apertus; apertura diagonalis, subcircularis, intus lilaceo- 

 fuscula; perist. subduplex, latere dextro & basali conna- 

 tum, expansum, externum superne alatim dilatalum, latere 

 sinistro subreflexum. — Diam. maj. 16, min. 13, alt. 8 

 mill. Ap, intus 6'/» n\i\\. longa, 6 lata. 



34 C. solutum Richard. (241.) — T. umbilicata, 

 depressa, longiludinaliter confertim filoso-costata , sericea, 

 diaphana, albida, lineis rufis interruptis ornata; spira pa- 

 rum elevata, mucronata ; sutura subcanaliculata, obsolete 

 denticulata; anfr. 5 convexi, ultimus teres, antice descen- 

 dens, solutus, basi in umbilico latissimo spiraliter sulca- 

 tus ; apertura obliqua, fere circularis; perist. duplex: in- 

 lernum continuum, rectum, prominens, externum album, 

 undique rectangule patens, superne dilatatum, ad anfrac- 

 tum penultimum inflexo-adnatum. — Diam. maj. 13, min. 

 10, alt. 5Va niill- Ap, intus 4Vs m\\\. longa. 



36. C. pingue Pfr. (252.) — T. umbilicata, oblongo- 

 lurrita , truncaia, solida, liris spiralibus obtusis undulata, 

 striis longitudinalibus confertissimis sculpta, oleoso-micans, 

 cinnamomeo-fusca; sutura jnofund;», simplex; anfr. sup 4 

 convexi, regulariter accrescentes, ultimus rotundatus; aperlura 

 subvcrticalis, fere circularis; perist. aibum, duplex: internum 

 expansiusculum, adnatum, externum continuum, horizontaliter 

 expansum, anfractui penultimo brevissime adnatum, superne 

 angulatum. — Long, l^Vajdiam. 6mill. Ap. 37$ mill. longa, 



37. C. desciscens Pfr. (256.) — T. late umbili- 

 cata , depresso-semiglobosa, superne confertim sulculata, 



