114 UNIVALVES. 



rounded ribs, sometimes minutely striated. They 

 are worn as ornaments by the Indians. 



NERITA Peloronta* 

 BLEEDING TOOTH. 



Specific character. Shell solid, thick, semi 

 globular, turbinate, imperforate, slightly ribbed 

 transversely; spire flat; aperture entire, semi- 

 lunar ; outer lip crenulate, inner lip rather con- 

 cave, with two or three large teeth and an 

 irregular saffron or blood-coloured spot in the 

 middle ; ground of the shell whitish or pale grey 

 with irregular black and red or purplish longitu- 

 dinal zig-zag markings ; aperture white, and 

 throat pale saffron-colour. 



The shells of this species inhabit the ocean, 

 and are found in the West Indies, Red Sea, 

 and Molucca Islands. The animal is furnished 

 with an operculum which opens and shuts at its 

 pleasure, like a door upon its hinges, having a 

 little prominence within the shell, at the lower 

 end of the lip, between which and the inner lip 

 a small projection of the operculum slides as it 

 opens. 



NERITA Corona. 



Specific character. Shell globose, striated, 

 spire short, eroded,| body whorl large with a 



* Plate V. figure 4. 



f Eroded, gnawed out, from Latin e, out, and rod ere, to gnaw. 



