89 
BUCCINUM. 
A. Inflated, rounded, thin, subdiaphanous, and 
brittle. (Plate XVI. Fig. 1.) 
B. With a short exserted reflected beak : lip 
unarmed outwardly. (Fig. 2.) 
C. Outer lip prickly on the hinder margin : in 
other respects as B. (Fig. 3.) 
D. Columellar lip dilated and thickened. 
(Fig. 4.) 
E. Columellar lip appearing as if worn flat. 
(Fig. 5.) 
F. Smooth, and not enumerated in the former 
divisions. (Fig. 6.) 
G. Angular, not previously enumerated. (Fig. 7.) 
H. Tapering, subulate, smooth. (Fig. 8.) 
Shell univalve, spiral, gibbous. Aperture ovate, 
ending in a canal turned to the right, i. e. from 
the exterior lip, with a short rostrum or beak. 
Interior lip flattened. 
The numerous divisions of this genus include 
necessarily a great variety of shells, yet all agreC” 
