64. C. Hirritum PTr. (425.) — T. suliperronUa, (ur- 

 rita, truncatula, iineis elevatis spiralihus et loni;itU(linali- 

 l>us rej^ulariter clathrata, albida, lineolis lufis interruptis 

 cincta; suiura suhprorunda , confertiin denliculata; anfr. 

 superst. 6 convexiusculi, regulariter accresccntes, ultimus 

 rotundatus, basi liris validis spiralibus numitus; apertura 

 verticalis, ovalis, uitus fulvida; perist. subdu|)lex: internum 

 continuum, expansiusculum, exlernum superne angulato- 

 dilatatum, margine dextro vix patens, columellari et si- 

 nistro excisum. — Long. 16, diam, 7 jnill. Ap. 5 mill. 

 longa , 4 lata. 



65. C. diaphanum Ffr. (4>7.) — T, subperforata, 

 oblongo-turrita, truncata , tenuiuscula, lineis elevatis spi- 

 ralibus, conferlis, costulisque illas transgredientibus filari- 

 bus coufertioribus decu.ssata, diaphana, unicolor albida; 

 spira elongata; sutura irregulariter crenata; anfr. (sup.) 

 4'/2 convexi, subaequales, uliimus antice solutus, dorso 

 cariiialus, basi rotundatus, disiinctius spiraliter sulcatus; 

 apertura verticalis , angulato-ovalis; perist. subsijnplex, 

 continuum , undique breviter expansum. — Long. 12, diam. 

 5 mill. Ap. intus SVa 'i»'ll- longa, 3 lata. 



66. C. jucundum Ffr. (428.) — T. perforafa, ovato- 

 turrita, tenuis, lineis spiralibus et longitudinalibus chor- 

 datlormibus anguste reticulala, subscabra, vix nitidula 

 aurantio-rubicunda; spira turrita, vix truncatula; sutura 

 conferlim denticulata; anfr, 6 — 7 modice convexi, regu- 

 lariter accrescentes, ultimus circa perforationem liris non- 

 nullis validioribus inunitus; aperlura parum obliqua, irre- 

 gulariter ovalis, intus concolor, nitida; perist. duplex: 

 internum expansiusculum, incumbens, latere sinistro le- 

 vissime arcualo, externum continuum, horizontaliter pa- 

 tens, anfr. penultimo breviter adnatum, infra perforationem 

 angustatum. - Long. ly, diam. «'/j mill. Ap. intus 6 raill- 

 longa, 4V2 bila. 



67. C. harpa Ffr. (431.) — T. breviter limata, ob- 



