174 SEMINELLA. 



C. LiNiGERA, Duclos. PI. 57, fig. 27. 



Shell of the general character of the preceding species, but 



narrower, with stronger ribs and slightly dentate within the 



aperture. Length, 6 mill. 



Habitat unknown. 



C. oxYLLiA, Duclos, PI. 57, fig. 28. 



Shell broad ovate, spire and upper portion of body-whorl 



strongly ribbed ; with re volving 'striae below, becoming obsolete 



on the middle and upper portion of the bod^^-whorl ; lip with 



an external varix, strongly dentate within ; yellowish brown 



maculated with chestnut. Length, 5+ mill. 



Habitat unknown. 

 C. ACLEONTA, Duclos. PI. 58, fig. 31. 



Shell longitudinally ribbed, with revolving striae at the base ; 



light chestnut-color; columella tuberculated, outer lip dentate 



within. Length, 9 mill. 



Habitat unknown. 

 Perhaps a variety of C. oxyllia. 



C. CLEDONiDA, Duclos. PI. 58, fig. 29. • 



Shell with tabulated whorls, biangulated on the body-whorl, 

 and nodulated on the angle, longitudinally ribbed, crossed by 

 impressed striae ; yellowish brown. Length, 4-5 mill. 



Habitat unknown. 

 C. RUMiLiA, Duclos. PI. 58, fig. 30. 



Shell with distant well-rounded whorls, and distant rounded 

 ribs crossed by revolving, narrow riblets, contracted into a short 

 open canal below ; inner lip slightly plicate, outer lip dentate 

 within ; brown, darker on the ribs. Length, 7 mill. 



Habitat unknoicn. 

 C. PROSYMNiA, Duclos. PI. 58, fig. 32. 



Form and sculpture of the shell very like the preceding 

 species ; but the ribs are flatter, the revolving riblets replaced 

 by striae or grooves forming smaller tubercles between the inter- 

 sections, outer lip more strongly dentate within ; chestnut- 

 colored. Length, 7 mill. 



Habitat unknoicn. 



C ANAiDEA, Duclos. PI. 58, fig. 33. 



Sliell with elevated spire, moderately convex whorls and well- 

 impressed sutures; longitudinally ribbed, the ribs becoming 



