PLATE XCII. 



Mya tnmctata, abrupt. Penn. Br. Zooh 4. 14. tab. 41. fig. 14. 

 Chaina sabrotunda fusca rogosa, exaltera parte tnmctata. Trunc- 

 tata. Da Costa. Br. Conch, p. 233. sp. 57. 



Common on many of the British shores. 



