CONCHY LI Ji—niTHYR A. 46. 211 



Tvrton, Couch. Diet. p. 130. 

 Pecten distortus. Da Costa, p. 148, tab. 10, fig. 3 and 6. 



Montagu, Test. Brit, p. 148. 

 Pecten sinuosus. Pennant, Brit. Zool. iv. p. 222. tab. 64, fig. 2. 

 Pecten Pusio. Donovan, British Shells, i. tab. 34. 



Turton, British Fauna, p. 161. 

 Pecten minor. Lister, Conch, tab. 172, fig. 9. 

 Mus. nost. From rocks on the western coasts. 



Shell about an inch and a half long, orbicular or inclining to 

 oval, variously misshapen and distorted, of a pink or brownish 

 color, irregularly marbled or marked with chocolate brown ; the 

 lower valve generally much more convex, with the figure and 

 ribs of the shell occupying about half the surface, the other part 

 shooting into foliations or spines ; sometimes the upper valve! 

 more convex and the under one flat : the fine ribs are about forty! 

 in number, and more or less clothed with spines or scales. | 



Pecten testa tequivalvi, striis transversis minutissimis, radiis ?'aber. 



7 ad 10 obsoletis rotundatis, intus sulcis numerosis. 

 Shell equivalve, with very minute transverse striae, and from 



7 to 10 obscure rounded rays, and numerous grooves in the 



inside. 

 Ostrea glabra. Turton, Conch. Diet. p. 132. 



Pecten glaber. Pennant, Brit. Zool. iv. p. 223. .;3 



Montagu, p. 150, Suppl. 59, tab. 28, fig. 6.] ,j 

 Turton, British Fauna, p. 162. _. 



On the Scotch coast, near Dunbar. I " 'I 



