BUCCINUM. 409 



which is venti-icose or even tumid, is moderately rapid, and 

 much rounded. The pure white aperture, which is totally 

 devoid of all sculpture (it has not the columellar fold of 

 ciliatum to which in some respects it is allied), occupies 

 about four-sevenths of the ventral length ; it is of a sub- 

 rhomboid-oval figure, contracted above to a curved acute 

 angle, and but little narrowed below until the formation 

 of a short and remarkably wide canal, that bends to the 

 left. The more or less prominently arcuated outer lip 

 (the swell being continued almost to the anterior extre- 

 mity) does not exhibit any posterior sinuation, recedes 

 moderately below, and is somewhat patulous, the edge 

 being acute, and very gently reflected ; this reflection pro- 

 duces the appearance of an abbreviately recurved beak at 

 the basal emargination. The enamel of the inner lip is 

 more apparent from its brilliant whiteness than its solidity. 

 The upper part of the inner lip swells into the aperture, 

 and forms an obtuse angle with the columella, which 

 scarcely, if at all, exceeds it in length (being shorter than 

 the outer lip), is rounded, rather broad, and straightish, 

 but much curved at the anterior extremity. The pillar lip 

 is appressly reflected. The beautiful specimen we have 

 figured from Mr. Jeffreys' collection measures twenty lines 

 in length, and thirteen in breadth. 



The animal is unknown. The shell is very rare ; it is 

 marked in Turton's collection as from Torbay, and we ven- 

 ture to hazard a conjecture that it found its way to that 

 quarter through the agency of Newfoundland fishermen. 

 The species is, however, unquestionably British, though 

 exceedingly rare, having been procured by Mr. Humphreys 

 from the stomach of a haddock caught off* Cork, by Mr. 

 King, from the Dogger Bank, off" the Northumberland 

 coast, and by Mr. Macgillivray off* Aberdeen, Tt pro- 



VOL. III. 3 t> 



