153 



217. Pyrgula (annulata), Crist. #• Ja?is. 1832. Melania, sp. Desk. 

 Mel. helvetica, Mich. 



218. ?Tricula, Benson, 1842. Tri. montana, Benson. 



219. .' Tanalia, Gray. Paludomus, sp. Reeve. Nerita, sp. Gmel., 

 Chemn. Nerita aculeata. Oper. 1 



220. Hemisinus, Swains. 1840, 341. Tania, Gray, 1840 ; 1844, 60. 

 Mel. lineolata, Gray. 



Melania, sp. Pfeiffer. M. Ferussacii. 



221.Vibex, Ohen, 1815; Gray, 1840. Ligula, sp. Humph. 1/97. 

 Pirena, sp. Lam. 1822. Strombus, sp. Gmelin. Nerita, sp. 

 Midler. Melania, sp. Feruss., Desk. Bulimus, sp. Bruy. Ne- 

 rita anrita. 

 Melania, Swains. 1840. Mel. cpiadriseriata. 



222. Melanatria, Boicdich, 1822? Pyrena, sp. Lam. Melanopsis, 

 sp. Desh. Helix, sp. Dillw. Buccinmn fiumineum. 



223. Lampania, Gray, 1840; 1844, 60. Batillaria, Benson, 1842. 

 Cerithium zonale, Lam. 



224. Anculotus, Say, 1825. Anculosa, Swains. 1840, not Conrad. 

 Anc. prsemorsa, Say. 



Melanopsis, sp. Moricand. M. Crenocarina. 



Anculosa, Conrad, 1834. Omphemis, sp. Chenu. Melania, sp. 



Say. Anc. dissimilis. 

 Anculosa, sp. Anthony. Anc. rubiginosa. 

 Melania, sp. Say. Melan. obovata. 



225. Melatoma, Anthony, 184 ? ; not Swains. 1840. Melat. altilis, 

 Anth. 



226. Io, J.Lea, 1832. Fusus, sp. Say, 1825. Melafusus, Swains. 

 1 84 0, 34 1 . Fusus fluviatilis, Say . 



Melania, sp. Say. Mel. armigera, Say. 



227. Ceriphasia, Swains. 1840 ; Gray, Syn. 1844. Melania, sp. ? Say. 

 Ceriphasis sulcatus, Sir. 



1 Telescopella. Melania, sp. Say. Mel. undulata, Say. 



228. Melanopsis, Lam. 1822. Melanopside, Lam. 1812. Nana, 

 Schum. 1817, 225. Buccinum, sp. Clarke. Canthidomus, 

 (Swam*. 1840, 342. Faunus, 31. eyerie, 1 8 ? Melanithes, Swains. 

 1840, 341. Plotia, sp. Bolten, 1798. Melania, sp. Olivier. 

 Melan. costata. 



Melanopsis, Swains. 1840, 341 ; M. sp. Lam. Bulimus, sp. Lam. 

 Bucc. prserosum. 



229. Faunus, Montf. 1810 (Junior). Pirena, Lam. 1S22; Swains. 

 1840. Pyrene, Lam. 1812. Ligula, sp. Humph. 1797, not 

 Montag. Melanamona, Boirdich, 1820. Ebena, Schum. 1817. 

 Melanopsis, sp. Ferus. Nerita, sp. Midler. Cerithium, sp. 

 Brug. Buccinum, sp. Solander. Strombus ater. 



230. Clionella. Pleurotoma, sp. Lam. Buccinum, sp. Gmel. Bucc. 

 sinuatum. 



