OF CONCHOLOGY. 271 



C. planicostatum, Sowerby, Zool. Proc. 83, 1833. Reeve, 

 Icon. sp. 31, 184r4. W. Columbia to Cape St. Lucas. 



7. H. Carditseforme, Reeve, Zool. Proc. 1845. 



Conch. Icon. sp. 127. Hab.—f 



8. H. distorta, Pliilippi, Archiv. fiir Naturg. 55, 1845. 



Friendly Islands. 



9. H. Donaciforme, Spengler. 



Romer, Conch. Cab. 109, t. 4, f. 13, t. 14, f. 16, 17. Reeve, 

 Icon. sp. 25. 

 C. Australiensis, Reeve, Zool. Proc. 168, 1844. Reeve, Icon. 

 sp. 24. Philippines, Australia. 



10. H. fornicata, Sowerby, Zool. Proc. 110, 1840. 



Conch. Illust. f. 50. Conch. Icon. sp. 110. Hob.—? 



11. H. Fragum, Linnaeus, Syst. Nat. edit, x, 679. 



Reeve, Icon. sp. 23. Romer, Conch. Cab. 105, t. 4, f. 

 9, 10. 



C. imbricatum, Born (not Sowb.), Mus. 42, t. 3, f. 3, 4, 1798. 



China. Philippines, Pacific Isles. 



12. H. Hemicardia, Linnaeus, Syst. Nat. edit, x, 678. 



Reeve, Icon. sp. 38. Romer, Conch. Cab. 107, t. 4, f. 2, 4. 



Philippines. 



13. H. Hystrix, Reeve, Zool. Proc. 168, 1814. 



Conch. Icon. sp. 40. Philippines. 



14. H. granifera, Brod. et Sowb., Zool. Jour, iv, 367. 

 Reeve, Icon. sp. 43. Romer, Conch. Cab. iii, t. 14, f. 20, 



21. Pacific Coast, Central America. 



15. H. imbricata, Sowerby, Zool. Proc. 110, 1840. 



Reeve, Icon. sp. 28. Swan River Colony, Australia. 



16. H. media, Linnaeus, Syst. Nat. edit, xii, 1122. 



Reeve, Icon. sp. 30. Romer, Conch. Cab. 102, t. 4, f. 

 5, 7. West Indies. 



17. H. munda, Reeve, Zool. Proc. 1845. 



Conch. Icon. sp. 125. Lord Hood's Island. 



18. H. nivalis, Reeve, Zool. Proc. 1845. 



Icon. sp. 95, 1845. Philippines. 



19. H. obovale, Brod. and Sowerby, Zool. Proc. 84, 1833. 

 Reeve, Conch. Icon. sp. 117, 1845. West Columbia. 



20. H. ovuloides, Reeve, Zool. Proc. 145, 1845. 



Conch. Icon. sp. 126, 1845. Hab.—f 



