BITLIMUS. 147 



Sub-gen. strophocheilus, Spix (Coniclus, Albers). 



Shell narrowly perforate, ovately-oblong, last whorl obliquely 

 descending; aperture oval or somewhat auriform; columella 

 plicate above ; peristome widely expanded, shortly reflexed, the 

 columellar dilated, reflexed. 



cardinalis, Pfeif. planidens, Mich. 



contortuplicatus, Reeve. pudicus, Mull. 



Milleri, Sow. rhodocheilus, Pfeif. 



perplexus, Sow. unidentatus, Sow. 



Sub-gen. plecocheilus, Guilding (Carychium, Leach, not Mull. 

 Auricula, Swains., not Lam. Caprella, Guild., not Lam). 



Shell solid, rimate, ovato-fusiform ; aperture narrow, elon- 

 gate, more or less augulated anteriorly; columella with a strong 

 plait; peristome thickened, widely expanded, the right margin 

 undulated. 



auris-Sileni, Born. perdix, Pfeif. 



Dillwynianus, Pfeiff. signatus, Spix. 



distortus, Brug. sinuatus, Albers. 



euryomphalus, Jonas. undulatus, Mart. 



Sub-gen. charis, Albers. 



Shell perforate, oblong, diaphanous ; spire short, conical, last 

 whorl exceeding the spire; aperture oblong, auriform; colu- 

 mella tortuous, callous, forming a triangular tooth ; peristome 

 expanded. 



Blainvillianus, Pfeif. Loveni, Pfeiff. 



Founaki, Homb. and Jacq. malleatus, Jay. 



fulguratus, Jay. roseus, Gould. 

 fulminans, Nyst. 



