PLATE L. 



This Is a local and rare species ; it has been found at Weymouth 

 on the Dorsetshire coast, and according to Dr. Lister in plenty in 

 the astuary of the Severn, on the side of Wales. 



It differs from the Solen siliqua in several respects ; it is smaller, 

 and not strait, but curved or bowed like a Scymetar. 



