BUCCINUM. WHELK. 15 



lines, forming small tubercles all over the shell : aperture 

 nearly oval, the outer-lip not thickened at the hack, with 

 mostly a few fine teeth on the inside ; inner-lip folding back, 

 and forming a hollow behind it : color yellowish-brown, 

 with generally a pule chesuut band round the end of the 

 volutions : length above an inch ; breadth not half an inch. 

 Common on many sandy beaches, v. v. 



7. Buccinum Macula. Thick-lipped JFhelk. 

 Pennant, pi. 82. f. 6 Montagu, pi. 8. f. 4 Linn. Trans. 



viii. pi. 4. f/4 Dorset Cat. pi. 15. f. 8. 



Shell oval, pointed, with seven spires, strongly reticu- 

 lated like the last ; but the longitudinal ribs are more waved, 

 "and the spires are better denned and more distinctly sepa- 

 rated by the line of junction : aperture nearly orbicular, with 

 a small dark purplish spot at the outer edge or back of the 

 canal ; outer-lip thickened by a strong rib at the back, and 

 slightly toothed on the inside ; inner-lip faintly toothed, a 

 little folding back, but not forming a. hollow behind it : co- 

 lor various shades of brown, chesnut, white, purple, or 

 pink, and often covered with a polished livid skin : length 

 about half an inch; breadth not a quarter. 



Variety A. Larger, with the outer-lip thin, and not 

 toothed on the inside. 



Variety B. With a notch or cut at the upper angle of 

 the outer-lip, separating it from its attachment to the body 

 volution, similar to that which is found in the Murex gra- 

 ciiis. 



On most sandy shores : the variety B. we observed in the 

 cabinet of Mrs. C. W. Loscombe, of Exmouth. v. v. 



8. Buccinum arnbiguum. Ambiguous JFhelk. 

 Montagu, pi. 9. f. 7 Linn. Trans, viii. pi. 4. f. 5 Dorset 



Cat. pi. 18. f. 19*. 



Shell somewhat conic, thick, with six or seven spires, 

 which terminate rather abruptly at their tops, and are deeply 

 divided by the line of separation, marked with strong di- 

 stant longitudinal ribs, from eleven to fifteen in number, a 

 little swelling into tubercles at the junctures, and reticu- 

 lated by finer transverse lines : aperture nearly orbicular ; 

 the outer-rlip thickened by a rib at the back, and very 

 c 2 slightly 



