MAEGINELLA.— Plate XXIV. 



Hab. Island of Thomas, V/est Indies. 



Resembling the preceding West India species in general 

 aspect, but quite distinct. It is more obtusely rounded at 

 the extremities, and has an additional plait upon the colu- 

 mella. 



Species 137. (Mus. Cuming.) 

 Makginella sordida. Marg. testa anffusie oblonga. 



sordide alba, spird obtuse conicd, labro varicoso-incras- 

 sato, columella triplicatd. 



The sordid Marginella. Shell naiTowly oblong, dull- 

 white, spire obtusely conical, lip varicosely thickened, 

 columella three-plaited. 



Hab. ? 



Of a simple character, but distinct from any other 

 species. 



