148 
SPECIFIC 
Specimen cinereous, with one whitish band ; 
lips white and highly polished ; outer lip toothed 
internally ; obliquely plaited . 
Inhabits the European Seas. 
Fig. 5. l^.patiilum. 
Shell muricate ; outer lip crenate ; columella 
flattened, rather concave, sickle-shaped. 
Lister Conch. Tab. 989. Fig. 49. 
Specimen white, with dark brown transverse 
strise, lines, and tubercles ; the brown striae more 
or less confluent in parts, so as to form longi- 
tudinal dark rays and transverse belts ; within 
bluish, and shewing the external white belts 
through the substance of the shell ; columellar lip 
bright orange. 
Inhabits Africa and America. 
Fig. 6. B. spiratum. 
Shell smooth ; whorls separated by a broad 
canal; columella abrupt, perforated. 
Lister Conch. Tab. 981. Fig. 41. 
Specimen white, with ochraceous spots ; aper- 
ture ovate, emarginate at the top ; umbilicus 
