UNIVALVES.— .BUCCINUM. 



E. Ventricose; the spire papillari/ at the tip. 



89 



^Ethiopica (White mouthed 

 Melon; Ethiopian Crown) 

 Cyinbium {Clouded or Boat 

 Olla {Melon.) {Melon) 



Ampla. 

 Neptuni. 



Navicula {Gondola) 

 Papillaris. 



Iiidica {Spotted Melon.) 



Scaplia {Li(jhtning.) 



Cymbiola. 



Pryeputium. 



Glans. 



Reticulata. 



Spectabilis. 



BUCCINUM.-WiiELK. 



Animal — a Limax: Shell nnivalvCy spiral, gihhons ; aper- 

 ture ovate, terminating in a short canal, leaning to the 

 right, with a retuse beak or projection ; pillar-lip ex- 

 panded. 



This genus, which comprises two hundred species, is re- 

 markable for the great and beautiful variety it affords, and 

 by its resemblance is rendered difficult to separate from 

 the genus murex ; however, the leading distinction given to 

 the Buccinum is, that its beak or canal is usually much 

 shorter than that of the murex, and instead of leaning to 

 the left, it inclines to the right. Besides which, the Buc- 

 cinum is generally more gibbous or bellied than the Mu- 

 rex, especially when those species called tuns and hel- 

 mets are referred to. The tuns are for the most j)art of 

 a brittle and light fabric, and although some of Ihcm 



