PLATE CLXXIX. 



FIG. I. 

 TURBO ACUTUS. 



ACUTE WREATH SHELL. 

 GENERIC CHARACTER. 



Animal Umax. Shell univalve, spiral, or of a taper form. Aper- 

 ture somewhat compressed, orbicular, entire. 



SPECIFIC CHARACTER. 



Shell taper, acute, snowy white, whorls about twelve with nume^ 

 rous oblique obtuse ribs. 



Turbo acutus : testa turrita acuta nivea, anfiactibus subduodecira 

 costis confertis obliquis obtusis. 



A mutilated specimen of this curious Shell has been sent to us from 

 the coast of Cornwall : we believe it has been also found at Wey- 

 mouth ; but our perfect shell of this species is from Guernsey. — The 

 smallest figure is of the natural size. 



