143 



perforata, ovato-turrita, scepe truncata, tenuiuscula, lineis ele- 

 vatis spiralibus, confertioribusque lo7igitxidinalibus illas trans- 

 gredientibus {decima quavis vel undecima plerumque vali- 

 dioribus) sculpta, albida, fusco marmorata et irregulariter 

 strigata ; sutura dense crenulata; anfr. 7, convexiusculis, 2 

 ultimis turgidis, ultimo antice soluto, dorso acute carinnto ; 

 apertura subobliqua, angidato-ovali ; perist. simplice, continuo, 

 undique expansiusculo, superne angulatim producto. — Operc. 

 fiisco-luteuni. 

 Long. 17, diam. S\ mill. 



21. Cyclostoma eusarcum (Chondropoma), Pfr. C. testa 

 subperforata, ovata, ventrosa, tenuiuscula, longitudinaliter 

 confertissime plicata, vix nitida, diaphana, pallide isabellina, 

 lineis interruptis rufis interditm cincta ; spira convexo-conica, 

 breviter truncata ; sutura subsimplice ; anfr. siqierst. 4, con- 

 vexis, ultimo penultimum vix superante, antice brevissime so- 

 luto, basi liris nonnullis spiralibus sculpto ; apertura vix obli- 

 qua, angulato-ovali ; perist. simplice, expansiusculo, margini- 

 bus superne in angulum acutum junctis, sinistro leviter arcuato. 

 — Operc. normale. 



Long. 13, diam. 7^ mill. 



22. Cyclostoma simplex (Chondropoma), Pfr. C. testa sub- 

 perforata, oblonga, truncata, solidula, lineis spiralibus eleva- 

 tis, longitudinalibusque confertissimis illas transgredientibus 

 sculpta, vix nitidula, pallide aurantiaca, lineis rufis strigatim 

 interruptis picta ; sutura subsimplice; anfr. superst. 4\, con- 

 vexis, lente accrescentibus, ultimo rotundato, basi distinctius 

 spiraliter sulcata, antice subsoluto ; apertura verticali, angu- 

 lato-ovali; perist. simplice, continuo, vix expansiusculo, mar- 

 ginibus superne in angtdum productum junctis. — Operc. fusco- 

 luteum. 



Long. 11^, diam. 5 mill. 



23. Cyclostoma hemiotum (Chondropoma), Pfr. C. testa 

 perforata, oblongo-turrita, tenuiuscula, lineis spiralibus obso- 

 lete elevatis, longitudinalibusque confertissimis {\0-\2 infasci- 

 culum junctis) levissime clathrata, non nitente, fusculo-albida, 

 plerumque lineis interruptis rufis et fascia 1 rufa, latiore, infra- 

 mediana ornata ; spira subtruncata ; sutura confertim denti- 

 culata ; anfr. 5—7, convexiusculis, ultimo antice breviter soluto, 

 dorso carinato ; apertura subverticali, ovali ; perist. subdupli- 

 cato, interno continuo, expansiusculo, externa a medio marginis 

 dextri descendente, breviter patente, inedio marginis sinistri in 

 auriculam subundulatam terminato. — Operc. normale. 



Long. 16, diam. 1\ mill. 



24. Cyclostoma blandum (Chondropoma), Pfr. C. testa 

 subperforata, ovato-turrita, truncata, solidula, lineis elevatis 

 spiralibus, confertioribusque longitudinalibus illas transgredi- 



