16 



01,1. This species is very much like radians, 

 indeed it is impossible to know which of the two, 

 this or the one we commonly call by that name, is 

 the radians of Lam. The principal difference is 

 in the number of teeth on the inner edge of the 

 outer lip. 



129 Cyprsea radians, Lam., "Wood's Cat. t. 17, f. 58. 



130 depauperata, iVbii^*, Conch. Illust., f. 49. 



Shell nearly orbicular, rather depressed, pale 



fawn coloured, dorsal line narrow, distinct ; trans- 

 verse ribs few, distant, sometimes interrupted ; 

 margins thickened ; under side somewhat rounded ; 

 ribs and teeth of the outer lip more numerous and 

 closer than those of the inner : length 0*5, 

 breadth 0-4. 



The locality of this species, which does not ap- 

 pear to be nearly related to any other, is unknown ; 

 very few specimens have occurred. 



Genus, ERATO, Gray. 



Obs. I readily adopt this Genus, which appears to 

 have been first established by Risso, followed by 

 Gray : merely observing that it is a link connecting 

 Cyprcea with Marginella. 

 1 Erato scabriuscula, Gray : Marginella Cypreeola, 

 Sowerhy, Conch. Illust. f. 45. 



Shell ovate, turbinate, purplish brown, covered, 

 except the dorsal line, with minute granules ; spire 

 short, conical ; aperture rather wide, paler coloured ; 

 columellar lip plaited transversely its whole length ; 



