(= Neritopsina)
Helicina clappi (Helicinidae), a terrestrial relative of nerites from Florida. Picture: Robert Pilla (Jacksonville Shell Club). |
- Family Orthonychiidae †
- Family Vltaviellidae †
Fresh water nerite (Theodoxus danasteri). View of the animal and its operculum. Picture: © Alexander Mrkvicka. |
Return to: Systematics of Gastropoda.