PLATE XCIL 



Mya trimctata, abrdpt. Penn. Br. Zool. 4. 14. tah. M. Jig. 14. 

 Charaa subrotunda fusca rugosa, exaltera parte trunctata. Trukc- 

 TATA= Da Costa. Br. Conch, p. 233. sji. 57. 



Common on many of the British shores. 



