Genus: Ancylus

Systematics :

KingdomAnimals (Animalia)
Phylum Molluscs (Mollusca)
Klasse  Snails (Gastropoda)
Order   Lungesnegler (Pulmonata)
Suborder    Vannlungesnegler (Basommatophora)
Superfamily     Planorboidea
Family      Skivesnegl (Planorbidae)
Genus       Ancylus
Species        Elvetoppluesnegl (Ancylus fluviatilis)