OF CONCHOLOGY. 267 



76. Groenlandicum, Chemnitz, Conch. Cab. vi, 202, t. 19, 



f. 198. 

 Reeve, Icon. sp. 53, 1845. 

 C. edentulum, Montagu, Test. Brit. Suppl., 29. 

 Mactra radiata, Donovan, Brit. Shells v, t. 161. 

 Aphrodite Columba, Lea, Am. Philos. Trans, iv. 5, t. 18, f. 54, 



1834. 

 0. boreale, Reeve, Icon. sp. 131, 1845. 



Arctic Ocean, Europe, America south to Massachusetts. 



77. C. Adamsi, Try on. 



C. modestum, Adams and Reeve (not Philippi), Voy. Sama- 

 rang 77, t. 22, f. 6, 1850. Eastern Seas. 



Genus PAPYKIDEA, Swainson. 

 Malacol. 374, 1810. 



1. P. aperta, Chemnitz, Conch. Cab. vi, 189, t. 18, f. 181-3. 

 0. Virgineum, B. Gmelin, Syst. Nat., 3253. 



C. rugatum, Reeve, Icon. sp. 63, 1845. 



Rb'mer, Conch. Cab. 77, t. 3, f. 1-3, 1869. Philippines. 



2. P. bullata, Linnaeus, Syst. Nat. Edit, x, 673. 



Reeve, Icon. sp. 8. Rbmer, Conch. Cab. 74, 1. 12, f. 13-16. 

 C. Soleniforme, Brug. Encyc. Meth. i. 235, 1789. 

 C. spinosum, Muschen, Naturf. 1782. 



Adams' Genera iii, t. 112, f. 1, 1 a. 

 C. aspersum, Sowerby, Zool. Proc. 85, 1833. West Indies. 



3. P. Cumingii, Sowerby, Zool. Proc. 82, 1833. 



Reeve, Icon. Sp. 59, 1845. 



Gulf of Dulce, Central Am. 



4. P. Fornasiniana, Bianconi, Mem. Acad. Bologn. vii, t. 25. 



f . 1 . Mozambique. 



5. P. hiulca, Reeve, Zool. Proc, 1845. 



Icon. sp. 123, 1815. Hab. —? 



6. P. papyracea, Chemnitz, Conch. Cab. vi, 190, t. 18, f. 184, 



1782. 

 Reeve, Icon. sp. 9. Rbmer, Conch. Cab. 78, t. 3, f. 4, t. 

 12, f. 19, 20. 

 C. Natalense, Krauss' Siid Afric. Moll. 12, t. 1, f. 9. 

 C. Japonica, Dunker, Mai. Blatt. vi, 223. 



VARIETY. 



C. muticum, Reeve, Icon. f. 32, 1844. 



Moll. Japan. 28, t. 3, f. 16. China, Japan, Philippines. 



