COLU]VCBELLA.— Plate XXX. 



vexis, mturk excavatis ; aperturd parvd, intus denti- 

 culatd. 



The ridged Columbella. Shell ovate, spirally ridged 

 throughout, the interstices being conspicuously exca- 

 vated, white, much stained and spotted with purple- 

 red, whorls convex, sutures excavated ; aperture small, 

 denticulated withm. 



Hob. ? 



A well-defined species, strongly spirally excavately 

 ridged throughout, and much stained with deep purple- 

 red colouring. 



Species 196. (Mus. Cuming.) 



Columbella Antillabdm. Col. testa ovatd, lutescente, 

 cadaneo-fusco suUilksinie reticulata, anfractibua tuh- 

 ventricom, swperne longitudinaliter costellatS; aper- 

 turd parvd, labro iimplici. 



The West Indian Coldmbella. Shell ovate, yellow- 

 ish, finely reticulated with chestnut-brown, whorls 

 slightly ventricose, longitudinally ribbed at the upper 

 part ; aperture small, lip simple. 



Hab. Island of St. Thomas, West Indies. 



The network of this species is very delicate, stretched, 



as it were, more transversely than usual. 



