128 GASTROPODA. 



Marginella (Lamk.). Outer lip smooth; inner 

 lip obliquely plaited. 



M. laevis. Fig. 201 ; n. .- 



201 



FAMILY II. CONID.E. 



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. 



Pleurotoma (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. 



brachystoma. rufa. Fig. 202 ; ;?. s. 



costata. septangularis. 



gracilis. striolata. 



Leufroyi = teres. 



linearis. Trevelyana. 



nana. turricula. 



nebula. minima. 



