232 



with the Columellariae ; but in so doing, the leading 

 characters of that family would have been altered, by 

 blending with it any shell having a canal; nor would 

 the alliance have been pointed out which exists between 

 the Cancellariae and the Turbinellae. Linnaeus in- 

 cluded these shells with the Volutae; they are however 

 very unlike the Oliva, Voluta, (properly so called), 

 Mitra, Marginella, or any other of the new genera, 

 which have been formed from his widely extended G. 

 Voluta. Many of the Cancellariae are subcanaliculated 

 at the base, which never takes place in any species of 

 Volutae. Shell oval, or turreted; aperture with a very 

 short canal at the base, sometimes hardly visible; in- 

 terior of the opening grooved, columella with few or 

 numerous irregular plaits, the greater number trans- 

 verse; exterior striated, cancellated, and in general 

 rough to the touch. They are all marine shells. 

 Cancellaria reticulata Cancellaria senticosa 



asperella citharella 



scalarina spirata 



scalariformis obliquata 



nodulosa rugosa 



cancellata Ziervogeliana- 



[And seven fossil species.] 



