146 SPECIFIC 



PLATE XVI. 



Fig. 1. BucciNUM Dolium. 



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. Jreola. 



Shell substriate ; belted with four rows of qua- 

 drilateral spots; aperture toothed; beak recurved. 



Lisle7- 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. Fibex. 



Shell entirely smooth, slightly folded and crown- 

 ed with obsolete tubercles. 



Lister Conch, tab. 101."). fig. 73. 



Specimen purplish white marked with two in- 



