PLATE CLXXVI. 



describes his shell as being found at Poole, in Dorsetshire : where 

 Dr. Pultney also met with it on the sands in the harbour ; likewise 

 on the north shore near Brownsea Isle, and once with a few valves 

 on the shore between Weymouth and Portland. 



Mya praetenuis, as the specific name implies, is a remarkably thin 

 shell, very brittle, of a whitish colour, and distinguished by having 

 an oval process or tooth resembling the bowl of a spoon in each 

 valv?. at the hinge. 



