no LIGULA. SPOON-HINGE SHELL. Cl. VI. 



Taken by deep dredging on the Devonshire 

 coast; very rare; discovered by Mr. 3Ion~ 



tagu.^ ■ 



* Mr. 3Ioniagu, in the Supplement to his Testacea Briian- 

 oiica, expresses a wish that the Mya prcetenuis, M. pulescens, 

 M. disiorta, and the Mactra tenuis, M. compressa, M. Boysiig 

 should be comprehended in this new genus. We lament, in 

 common with others, that it should have received a name which 

 had been previously appropriated to one of the Vermes Intestinot^ 



