153 



217. Pyrgiila (aunulata), Crist. ^- Janą. 1832. Melania, sp. Desh. 

 Mel. helvetica, Mich. 



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



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

 Chemn. Nerita aculeata. Oper. ? 



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

 Mel. liaeolata, Gray. 



Melania, sp. Pfeiffer. M. Ferussacii. 



221.Vibex, Oken, 1815; Gray, 1840. Ligula. sp. ITj^mjj^. 1797. 

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

 Mūller. Melania, sp. Feruss., Desh. Bulimus, sp. Brvg. Ne- 

 rita aurita. 

 Melania, Sivains. 1840. Mel. ąuadriseriata. 



222. MelaTiatria, Boivdich, 1822? Pyrena, sp. Lam. Melanopsis, 

 sp. Desh. Helix, sp. Dillvo. Bucciuum flumineum. 



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

 Cerithium zonale, Lam. 



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

 Ane. prsemorsa, Say. 



Melanopsis, sp. Moricand. M. Crenocarina. 



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



Say. Ane. dissimilis. 

 Anculosa, sp. Anthony. Ane. rubiginosa. 

 Melania, sp. Say. Melan. obovata. 



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

 Anth. 



226. lo, J. Lea, 1832. Fusus, sp. Say, 1825. Melafiisus, Sivains. 

 1840, 341. Fusus fluviatilis, Say. 



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



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

 Ceriphasis sulcatus, Siv. 



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



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

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

 Swains.\8A0,3A2. Faunus, iV/e^er/e, 1 8 ? Melanithes, Sit-az/a. 

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

 Melan. costata. 



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

 Buce. prserosum. 



229. Faunus, Montf. 1810 (Junior). Pirena, Lam. 1822; Sioains. 

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

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

 Melanopsis, sp. Ferus. Nerita, sp. Muller. Cerithium, sp. 

 Brug. Buccinum, sp. Solander. Strombus ater. 



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

 sinuatum. 



