ERATO.— Plate I. 



little pyrit'orm, violet-lead colour, spire conical, whorls 

 but little swollen, grain-dotted throughout, lip swol- 

 len in the middle, columella rather conspicuously con- 

 stricted throughout. 



Gray, Sowerby, Conch. lUus. f. 46. 

 Margindla cijpraola, Sowerby. 

 Marginella graniiin, Kiener. 



Hub. St. Elena, West Columbia ; Cuming. 



I'eculiarly distinguished from the rest of the genus by 

 its granulated surface and violet-lead colour. 



Species 5. (Fig. a, b, Mus. Cuming.) 



Erato l.evis. Erat. tedd oblusa pyriformi, sordide alba, 

 spird modice exsertd, anfractibun superne angulalo-tu- 

 midis, coluvielld labroque parum serralis. 



The smooth Eeato. Shell obtusely pyriform, dull 

 white, spire moderately exserted, whorls angularly 



swollen round the upper part, columella and lip but 



little serrated. 

 Vulula lavis, Donovan, Brit. Shells, vol. v. pi. 165. 



Bulla valuta, Montagu. 



Foluta fusiformis, Turton. 



Marginella Donovani, Payraudeau. 



Marginella valuta, Pleming. 



Volvaria Danovani, Elainville. 



Erato IcEvis, Gray. 



Culumbella leevis. Brown. 



Marginella ItFvis, Philippi. 

 Mab. Mediterranean. British Seas. 



The serrated sculpture of this species, which is sparingly 

 diffused at a depth of about fifty fathoms on all our British 

 shores, is generally more or less obsolete. It w'as named 

 Valuta Irdvis by Donovan, in 1803, in the concluding vo- 

 lume of his ' British Shells.' Montagu's name of Bulla 

 valuta, which has been thought by some to have priority, 

 was not published until 1808, when it appeared in the 

 Supplement to his ' Testacea Britannica.' 



