128 GASTROPODA. 



Marginella (Lamk.). Outer lip smooth; inner 

 lip obliquely plaited. 



M. Isevis. Fig. 201 ; n. .?- 



201 



199 200 



Family II. Conid^. 



Shell with the body conical, often longer than 

 the spire ; aperture usually long and narrow ; 

 outer lip notched near its hinder end ; operculum 

 minute or wanting. Animal with an oblong foot, 

 truncated in front, with a conspicuous pore in the 

 centre ; head lengthened, tentacles remote, carrying 

 the eyes. 



Fleurotoma (Lamk.). Shell spindle-shaped; 

 spire lengthened; canal short (in the British 

 species) ; outer lip with a deep slit at its hinder 

 part. 



P. attenuata. P. purpurea. 



braclijstoma. rufa. Fig. 202; n,s. 



costata. septangularis. 



gracilis. striolata. 



Leufroyi, teres, 



linearis. Trevelyana. 



nana. turricula. 



nebula. minima. 



