MANGELIA. 201 



M. striolata : shell narrow^ turreted^ whitish^ banded with 

 a brown band close to the suture ; whorls angulated, 

 with distant ribs ; spire longer than aperture. 



M. costata : shell like M. striolafa, with the ribs less nu- 

 merous ; whorls not angulated ; a broad chestnut band 

 between the ribs, reaching half-way down the shell. 



31. attemiata : a scarce southern species, having the tenta- 

 cles remarkably long, with the eye-bulgings very near 

 their bases ; the foot has a produced point at each side 

 of its straight front edge ; the shell is of the most 

 graceful form, tapering at both ends, with gently un- 

 dulating ribs, crossed by brown lines. 



