114 THE ELEMENTS 



apex. Found by Mr. Montagu, in the 



marshes at Deal. 



Linn, Trans, vol. viii. page 222. 



G The back, H the venter or belly, 

 tS depressed spire. 



Fijr. 6th -PATELLA CHINEN- 

 SIS. Shell sub-conic, sub-pellucid, 

 and very thin, colour whitish, much 

 compressed, rounded at the margin ; 

 vertex central, terminating in a sub- 

 spiral volution, with usually a number 

 of concave scales. Inside white, 

 glossy, and smooth, with a sub-spiral 

 columella ov pillar-lip, extending from 

 nearly the margin to the end, and 

 forming the external sub-volution ; it 

 is broad, flat and oblique. 



Found in Helford harbour, Corn- 

 wall; in Salcomb bay, Devonshire, by 

 Mr. Montagu ; and near Dunbar, by 

 Captain Laskey. 



Linn. Trans, vol. viii. page 28. 



W Chamber. 



