NATURAL SCIENCES OP PHILADELPHIA. 257 



Cardita avicidina, Lamarck, Aniin. s. Vert. vi. 26. 1819. 

 Delessert, Illust. t. 11, f. 10. 



Australia, Indian and Chinese Seas. 



Subgenus Begttina, Bolten. 

 Mus. Bolt, 1798. 

 M. gubernaculum, Reeve, Zool. Proc. 1843. Icon. sp. 9. 



Zanzibar. 

 M. semiorbiculata, Linnaeus, Syst. Nat. Edit. xii. 1138. 1767. 

 Reeve, Conch. Icon. sp. 10. 

 Cardita phrenetica, Lamarck. Anim. s. Yert. vi. 24. 1819. 



Philippines. 

 M. volucris, Reeve, Zool. Proc. 1843. Conch. Icon. sp. 20. 



Hab.? 

 Subgenus Glaks, Miihlfeldt. 

 Entwurf, 68. 1811. 

 M. naviformis, Reeve, Zool. Proc. 1843. Icon. sp. 45. 



Valparaiso. 

 M. trapezia, Linnaeus, Syst. Nat. Edit. xii. 1138. 1767. 

 Reeve, Conch. Icon. sp. 15. 1843. 

 Chama muricata, Scacchi, Cat. 5. 



Cardita squamosa, Lamarck, Anim. s. Yert. vi. 23. 1819. 



Mediterranean. 

 Subgenus Thecalia, H. and A. Adams. 

 Genera of Becent Mollusca, ii. 489. 1857. 

 M. concamerata, Chemnitz, 



Reeve, Conch. Icon. Cardita, sp. 42. 1843. 



Cape of Good Hope. 

 M. macrotheoa, Adarns and Angas, Zool. Proc. 39. 1864. 



So. Australia. 

 Genus CARDITAMEKA, Conrad. 



Foss. Shells, 12. 1837. 



Lazaria, Gray, Syn. Brit. Mus. 1853. 



C. affinis, Sowerby, Zool. Proc. 195. 1832. 



Reeve, Conch. Icon. Cardita, sp. 6. 1843. 



Cardita Calif ornica, Deshayes, Zool. Proc. 100. 1852. 



Central America to Gidf of California. 



C. Floridana, Conrad, Fossil Shells, 12. 1837. 



Cardita gibbosa, Reeve, Zool. Proc. 1843. Conch. Icon. 



sp. 21. 



Hab.? 



