1 46 SPECIFIC 



PLATE XVI. 



Fig. 1. BucciNUM Doliitm. 



Shell ovate, surrounded with transverse remote 

 flattened ribs ; beak rather prominent. 



Lister Conch. Tab. 899. 



Shell white, with square ochraceous spots on 

 the raised belts; very thin ; columella twisted. 



Inhabits Sicily, Africa, and India. 



Fig. 2. B. Areola. 



Shell substriate ; belted with four rows of qua- 

 drilateral spots ; aperture toothed ; beak recurved. 



Lister Conch. Tab. 1012. 



Specimen white, with a brownish tinge ; mouth 

 white ; spots pale brown ; shell transversely striate ; 

 inner margin of the outer lip toothed. - 



Inhabits the Mediterranean and Indian Seas. 



Fig. 3. B. Vibex. 



Shell entirely smooth, slightly folded, and 

 crowned with obsolete tubercles. 

 Lister Couch. Tab. 1015. Fig. 73. 

 Specimen purplish white, marked with two in- 



