24G 



Da Costa fays, this (hell is found in great abundance 

 in Cornzoall, but does not mention any particular part of 

 that coaft. If we did not know that (hells are extremely 

 local, we fliould be induced to think he had been deceived; 

 as we never could find it on any of the fliores in that 

 county, nor in DevonJJiire. Doctor Pulteney fays, it 

 is common on the coaft of Dorfet ; fometimes in great 

 numbers adhering iofuci and grafs wrack. 



On fuch good authority the exiftence of this fhell as 

 Englijh could not be doubted, though we always confidered 

 it as extremely rare, or at leaft very local; never having 

 been fortunate enough to find it till lately, and that fpar- 

 ingly, between Weymouth and Portland. From the fame 

 place we have been favoured with feveral fpecimens from 

 Mr. Bryer, amongft which was one entirely white, and 

 another variety lineated with pale brown and white. 



10. 

 CiNCTUM. B. with a conic, white fhell, marked with a fine thread- 



Tab. 15. f. 1. like girdle, of a rufous-brown colour, round the middle of 

 each fpire: volutions fix or feven, nearly even, finely and 

 clofely ribbed, and obfoletely ftriated tranfverfely in the 

 deprefiions between the ribs : apex {harp : aperture nar- 

 row, oval ; outer lip thickened with a broad rib at the 

 back, and denticulated within; inner lip fub-crenulated 

 bv the tranfverfe ftrias at the bafe; on the edge of the 

 outer lip, near the end, is a fmall rufous fpot, and 

 another at the upper angle of the aperture; from thefe, 



two 



