NASSA.— Plate VII. 



part, plaited near the apex ; columella shortly lami- 



uateci, interior ridged. 

 A. Adams, Pro. Zool. Soc. March 1851. 

 Hah. Island of Camiguing, Philippines (in sandy mnd) ; 



Cuming. 



A smooth solid rather swollen shell, freckled with white 

 upon an ash ground. 



Fig. 46. (Mus. Cuming.) 



A specimen of a somewhat variable species, N. crussa, 

 of which we have selected a more characteristic variety for 

 description at Plate X. 



Fig. 47. (Mus. Cuming.) 



This shell, N. Imhellei, D'Orbigny, we take to be a va- 

 riety of N. marginulata, represented at Fig. 43. 



