NEKITA.— Plate XVII, 



Species 75. (Fig. a, b, Mus. Cumiug.) 

 Nerita eingens. Ner. testa glohosd, parvd, solidd, spird 

 leviter exsei'td, anfractibus rotundatis, spiraliter regu- 

 lariter cosiatis, labro et columella fortudnie denta- 

 tis, area columellari tumidd et corrugatd ; intense 

 plumbed. 

 The grinning Nerite. Shell globose, small, solid, spire 



slightly exserted, whorls rouuded, spii-ally regularly 

 ribbed, lip and columella very strongly toothed, co- 

 lumeUar area swoUeu and wrinkled ; dark lead- 

 colour. 



Tlab. ? 



A small globose pea-Uke shell, distinguished by the 



strongly developed teeth of the lip and columella. 



