NATURAL SCIENCES OP PHILADELPHIA. 253 



A. castaneus, Deshayes, Zool. Proc. 102, t. 17, f. 11. 1852. 



Australia. 

 A. compressus, Reeve, Zool. Proc. 1843. Icon. sp. 4G. 



Valparaiso, Chili. 

 A. Conradi, Shuttleworth, Jour. Conch, v. 173. 1856. 



Cardita incrassata, Conrad (not Sowb.), Am. Mar. Conch. 

 39, t. 8, f. 2. 1831. 



Tampa Bay, Fla. 

 A. corbis, Philippi. Ennm. Moll. Sicil. 11, 48. 1844. 



Mediterranean, Canary Isles. 

 A. Cqrbiculjeformis, Deshayes, Cog. lie Reunion, 21. 



Mauritius. 

 A. crassus, Gray, Zool. Beechey's Yoyage, 152, t. 42, f. 4. 

 Reeve, Conch. Icon. sp. 34. 1843. 



Acapulco. 

 A. crenulatus, Deshayes, Zool. Proc. 102. 1852. 



Borneo. 

 A. Cumingii, Deshayes, Zool. Proc. 132, t. 87, f. 15. 1852. 



Borneo. 

 A. Cuviert, Broderip, Zool. Proc. 55. 1832. 

 Reeve, Icon. sp. 24. 1843. 



Central America. 

 A. difficilis, Deshayes, Zool. Proc. 103, t. 17, f. 16, 17. 1852. 



Neiv Zealand. 

 A. elegantulus, Deshayes, Zool. Proc. 101, t. 17, f. 6, 7. 1852. 



Chinese Seas. 

 A. elongatus, Philippi, Archiv fur Naturg. 54. 1845. 



Pacific Ocean. 

 A. ferruginosus, Adams and Reeve, Yoy. Sainarang, 76, t. 21, f. 

 21. 1850. 



Philippines. 

 A. plabellum, Reeve, Zool. Proc. 1843. Conch. Icon. sp. 47. 



Valparaiso. 

 A. flammeus, Michelin, Mag. Zool. t. 6. 1830. 

 Reeve, Conch. Icon. sp. 38. 1843. 



Hab. ? 

 A. gracilis, Shuttleworth, Jour, de Conch. 173. 1856. 



Porto Rico. 

 A. Gunnii, Deshayes, Zool. Proc. 101. 1852. 



Van Dieman's Land. 



