PART II. 



M Y AD.E. SOLENIN.3:. 



365 



FAMILY 2. MYADJE. Gaping Bivalves. 



Shells regular, always with defined cardinal teeth ; 

 valves more or less gaping at one or both extremities. 



116 J 





SOLENINJE. Solens. 



Shells generally linear, and always open at both extre- 

 mities ; cardinal teeth distinct. 



SOLEN Linn. Shell very straight, broad,, linear, and of 

 equal length throughout ; umbones very small, ter- 

 minal ; cardinal teeth small ; ligament long, exter- 

 nal, 

 truncatus. Sow. Gen. f. 1. vagina. Ib. f. 2. (Jig. 116. 6.) 



ENSATELLA Sw. Shell slightly curved. 



E. Europea Sw. (Solen Ensis Auct. ) 



NOVACULIXA Benson. Straight, of equal length 

 throughout ; the extremities rounded ; umbones 

 towards the middle ; cardinal teeth ^ ; dorsal margin 

 slightly thickened. 



N. Gangetica. Sow. Man. f. 63. 



