﻿MYA.— Plate III. 



Species 1.".. (Mus. Brit.) 



!Mya princeps. Mya testa alhd, tenui, ovata, vcntricosa ; 

 ante medium, medio et posiice rouUatim striatd ; 

 latere antico injlato, oblongo antice lavigalo, semi- 

 ovato ; umbonibus inflatis, retrorsis ; latere postico 

 brevi, angiisto, oblique augulato, ante angulum 

 coarclato, ad teiininum truncato ; margine dorsali 

 depresso, declivi. 



The PP.INCE Mya, Shell white, thin, ovate, vcntricose; 



radiately striated from before the middle, and 

 posteriorly ; anterior side inflated, oblong, smooth 

 anteriorly, semiovate ; umboes inflated, recurved; 

 posterior side short, narrow, obliquely angular ; 

 narrowed in front of the angle, truncated at the 

 end; dorsal margin depressed, sloped. 



A. Adams. Ind. {Cryptomya) MS. Cum. Coil. 



Hah. Philippine Islands. 



The largest and finest of the Cryptomya grou[). 



