CO^^CRYLIA—DirHYRA. 22. 



Mya oblonga. Chemnitz, vi. p. 27, tab. 2, fig-. 12. 



Chama magna. Da Costa, p. 230, tab. 17, %. 4. 

 Mms. nos^. On the wesitrn coasts. 



Shell two inches and three quarters long, and five inches and a 

 half broad, thick opake and strong, of a dull white or reddish yellow 

 color : beaks near one end, from which runs a curved slope, giving 

 the shell an elegant scyraetar-like form, and an oblique depression; 

 the shorter end is rounded, and the longer side truncate and some- 

 what angular. 



65 



LuTRARiA testa ellipticd mhrnquilaterali Iceviusculd, lateribus rotundatis. clliptica. 

 Shell elliptical nearly equilateral and almost smooth, rounded at ^• 



both ends. 

 Mactra Lutraria. Linn. Syst. Nat. p. 1126. 



Gmelin, Sy.st. p. 3259. 



Turton, Syst. Nat. iv. p. 211, 



Pennant, iv. p. 195, tab. 55, fig. 3. 



Chemnitz, vi. p. 239, tab. 24, fig. 240, 241. 



Montagu, Test. Brit. p. 100. 



Donovan, Brit. Shells ii. tab. 58. 



Linn. Trans, vi. tab. 16, fig. 3 and 4. 



Linn Trans, viii. p. 73. 



Turton, British Fauna, p. 155. 



Dorset Catal. p. 32, tab. 5, fig. 11. 



Dillwyn, Descript. Catal. p. 146. 



Turton, Conch. Diet. p. 84. 

 Chama magna. Da Costa, Brit. Conch, p. 230, Descript. 



K 



