DION E. 



affinis {CytJterea), Broderip . . 



affinis (Venus), Gnielin 



Africana {Cylkereii) , Philippi . 



alabastrum, Reme 



albida (Pechinctilits) , Lister . . 

 allernata (Cytlierea), Broderip 

 angulil'era {Cythi'i-ea), Sowerby 



aurautia {Chiune), Gray 



Australica, Reeve 



badia (Cbione), Gray 



hiradiala (C'ytberea), Sowerby 

 brevispinata {Cytlierea), Sowerby 

 Cliiiiensis {Venus), Chemnitz . 

 Chione {Feii/is), Liunajus. . . . 



circinata {Venus), Born 



citrina {Vytherea), Laniarek . . 

 concinna {CylJierea), Sowerl)y 

 consatKjiduea (Cytli.), C.B.Adam 



couvexa {Cytlierea), Say 



cordiformis (Cytherea), Dunker 

 costata {Veii/is), Cliemiiitz . . . 



crocea, Deslinyes 



cygnus {Cytlierea), Lamarck . . 

 Bioiie (Venus), Linn<eus .... 

 elegans (Cytherea), Koch .... 



erubcscens, Reece 



Erycina {Venus), Favanne. ... 

 Eryciiiella (Cytherea), Laniarek 



exspinata. Reeve 



festiva {Cytlierea), Sowerby . . 

 ilorida {Cytherea), Lamarck . . 

 gigantea {Venus), Chemnitz . . 

 glaher (Pectuneuhis), Da Costa 



grata, Deshayes 



Giiiiieeiisis (Venus), Gniclin . . 

 Hagenowi {Cytlierea), Dunker 

 inipar ( Cytherea), Lamarck ... 

 intiata {Cytherea), Sowerby . . 



Kingii {Venus), Gray 



IcBta {Venus), Linnaeus 



lepida (Cytlierea), Chenu .... 

 ligiita (Cytherea), Anton .... 

 liku'ina {Cytherea), Lamarck . . 



Eerat.\. 



Plate VI., Sp. 20, for " Cytherea laniellosa, Gaudichaud," read " Cytherea semilameltosa , Gaudichaud. 

 Plate VI., Pig. 23 on the plate should be Pig. 24, and Fig. 24 sbouhl be Fig. 23. 



