/ 



-o^ 6 ^o 



it^m. 



■4*m 



Aigentiiia, Sow. 



Aurantirt, flo. 



Bicolor, Gray. 



Kilunulata, do. ' ^ 



Caerulea, Reeve. 



Castanea, Lnirk. 



Castrensis, do. 

 '"-Chione, do. 



Circinata, Born. 



Idem, do. 



Citrina, Linrk. 

 ' • Conce^trica, do. 



Concmna, Sow. 



Conoexa, Say. 



Corbicnla, Lnirk. 



Idemy do. 



Costata, Chemn. 



Idem, do. 



Crassatelloides, Conrad. 



Ciuninfiii, Reeve. 



Cuneata, Lmrk. 

 £ignus, do. 



Damaoides, Gray. 

 — -Dio^e, Lnirk. 



Difeciis, Reeve. 



Divaricata, Lmrk. 



Dunckeri, Philippi. 



Erycina, Lmrk. 

 -Idem, do. 



Erycinella, do. 



Erythraea, Jonas. 



Exasperata, Philippi. 



Exokta, Lnirk. 



Fastigiata, Öow, 



Festiva, Valenc. 



Fleiiiosa, Lmrk. 



Idem, do. 

 — -Idettii, do. 



I4eiUTti«r 

 Gibbia, do. 

 (Jigantea, do. 

 Gracilior, Sow. 

 Gruneri, Philippi. 

 Ilepatica, do. 

 Hieroglyiiliica, Conrad 

 Impar, Lmrk. 

 Impudica, do. 

 Indecora, Philijjpi. 

 Isocordia, Dunker^ 

 .laponica, Reeve. 

 .Juvenilis, Lmrk. 

 Kingii, Gray. 

 Krausi, Dcslis. 

 L;i6ta, Lmrk. 

 Lanimata, Reeve. 

 Lentiginosa, Chemn. 

 Ijii i utJi. Lnii ' h . ' 



TiOngilniiata, Reeve. 

 Lunularis, Lmrk. ' 



_— LnpMius, Poli. ^&^^»*!!«i 

 Lnsipria, Lmrk. 

 Idcdi, do. 

 / 



Lutea, Koch. 



Mactroides, Lmrk. 



Idem, do. 



Maculata, Lmrk. 

 — I<lem, do. 



Menkei, Jonas. 



Meretrix, Lmrk. 



Idem, do. 



Mixta, do. 



Morphina, do. 



Multispinosa, Sow. 



Muscaria, Lmrk. 



Nobilis, Deshs. 



Obliquata, Hanley. 



Orbj'gnii, Dnnker. 



Ornata, Lmrk. 



Pannosa, Sow. 



Patagonica. Philippi. 

 _L'ectJnata, Lmrk. 



Peoiorelis, do. 



Peniciljata, Reeve. 

 -Petechialis, Lmrk. 



Philippinarum, Hanlej-. 



Placunella, Lmrk. 



Plana, Reeve. 

 _- l'lanulata, Sow. 



Porederosa, Gray. 

 _Pul^ira, do. 

 -PurartVata, Lmrk. 



Radiata, Sow. 



Idem, do. 



Ranella, Lmrk. 



Reevei, Grüner. 



Rivularis, Menke. 



Sow. 



'^ Kose^, Brodp. & 



Rugifera, Lmrk. 

 ^.Scabriuscula, Philippi 

 ! Scaläris, Menke. 

 'I Idem, do. 

 } Scripta, Lamark. 



Sculpta, Hanley. 



Semi-jKamellosa, Gatid;4 



Simplex, Hanley. 

 y. — isfiualida, Sow. 

 'ir — Squsfmosa, Lmrk 



I; V e n u ö 



Ij . Adspersa, Clieuiu. 

 i — -Affinis, Sow. 



Africana, Mühlf. 



Alta, Sow. 

 I; Idem, do. 



mabilis, Phil. 



Aphrodina, Lnuk. 



Aphrodinoides, do. 



Asperrima, Sow. 

 urea, Gmelin. 



Australis, Quoy & G. 



Bella, Jonas. 



Berryi, Gray. 



Bicolor, Lmrk. 



Calophylla, Phil. 



Campechiensis, Gmelin. 



Canc^aflata, Lin. 



Caiifioides, Lmrk. 



Casina, Lin. 



Catenifera, Lmrk. 



Ceylonensis, Sow. 



Cbinensis, Chemn. 



Cheniitzii, Hanley. 



Columbiensis. Sow. 

 I — Compta, Brodp. 

 d — Idem, do. 

 11' Corrugata, Gmelin. 



Costellata, Sow. 



Crassicostata, Quoy. 



Crenifera, Sow. 



Idem, do. 



Cren^lata, Chemn. 



Corningi, Sow. 



Cypria, do. 



Cyprinoides, Gray. 



Declivis, Sow. 



Declivis, do. 



Decussata, Lin. 



Deshavesi, Hanl. 



V 



Discr<?pans, Sow. 



Strivita, Gray. 



Stultorum, do. 



Subrosea, do. 



Sugillata, «Jonas. 



Testudinalis, Lmrk. 



Tigrina, do. 



Tortuosa, Sow. 

 — Tri^na, Reeve. 



Trigonella, Lmrk. 



ripla, do. 



TuiAens, Gmelin. 



ITmbpnella, Lmrk. 



Undatina, do. 



Undulata, Sow. 



Unicolor, do. 



A'arians, Hanley. 



Vcnetiana, Lmrk. 



Yentricosa, Gray. 



Donibeii, Lmrk 



Donacina, Chemn 



Di/sera, Lin. 



Elegantina, Lmrk. 



EUiptica, do. 



Entobnpta, Jonas. 



Exalbita, Chemn. 



Exarata, Phil. 



Fasciata, Dunovan. 



Flammiculata, Lmrk. 



Florida, do. 



Galactites, do. 

 L — Gallina, Lin. 

 ^ Idc^, do. 



Gallinula, Lmrk. 



Idem, do. 



Gemma, Totten. 

 l—Gco<iff^aphica, Chemn. 

 - Cinidia, Brodp. & Sow 



Granulata, Gmel. 

 — Or«v;(scens, Menke. 



Ce4t: 'k<r>n^^>*L^ 



^} 



