Q5 



M. with a thin, fub-triangular, femi-pellucid llieli, 

 faintly ftriated tranfverfely ; covered with a thin epider- 

 mis, of a light rufbus-brown colour, irregularly rayed 

 with broad and narrow whitifh lines ; fometimes of a red- 

 difli hue : umbo central, prominent, frequently of a pur- 

 plifhcafl: fides nearly equal. Infide pale purple, which 

 commonly gives a tinge of the fame colour on the outfide, 

 when the epidermis is worn off. Length one inch and a 

 half; breadth one and three-quarters. 



According to Doftor Pulteney, this fpecies is found 

 at Poole and at Weymouth. Da Costa fays DorfetJJiire, 

 Cornwall, Chejliire, and at the mouth of the Merfey ; alfo 

 on the coaft of Aberdeenjhire and other fhores of Scotland. 

 "We have found it on the coall of Caermarthenjkire, Kent, 

 and Devonjhire, but not common. 



This is not the Tellina radiata of Linnaeus. Mr. Pen- 

 nan t was miftaken with refpeft to his Synonyms. 



4. 

 Ma6lra dealbata. Puli. Cat. Dorfei. p. 31. -r^ 



Maflra pellucida. C/iem. Couch, vi. t. 24. f. 234. -r c f i 



Gmd. Syft. p. 3260. 2\. 



Tart. Lin. iv. p. 213. 



M, with a thin, fragile, pellucid, oval, white fnell, 

 very finely ftriated, with a few coarfer concentric wrin- 

 kles ; the fmaller end gaping a little: umbo not quite 

 central, but rather nearell the larger end ; middle tooth 



in 



