148 



SPECIFIC 



Specimen cinereous, with one vvhitisli band 5 

 lips white and highly poHshed ; outer lip toothed 

 internally ; obliquely plaited. 



inhabits the European seas. 



Fig. 5. B. palulum. 



Shell nuiricate ; outer lip crenate ; columella 

 flattened, rather concave, sickle-shaped. 



Lister Conch, tab. 989. fig. -49. 



Si)ecimcn white, with dark brown transverse 

 strite, lines, and tubercles ; the brown stria; more 

 or less confluent in parts, so as to form longitudinal 

 dark rays and transverse belts ; within bluish, and 

 showing the external white belts through the 

 substance of the shell ; columellar lip bright 

 orange. 



Inhabits Africa and America. 



Fig. G. B. spiralum. 



Shell smooth ; whorls separated by a broad ca- 

 nal; columella abrupt, perforated. 



lAster Conch, tab. 981 . fig. -4 1 . 



Specimen white, with ochraccous spots ; aper- 

 ture ovate, emarginate at the top ; umbilicus 



