Tornus Turton and Kingston 1830 (snail)
Gastropoda - Rissooidea - Tornidae
Parent taxon: Tornidae according to M. Harzhauser 2002
Sister taxa: Circulinae, Macromphalina, Solariorbis, Teinostomatinae, Torninae, Vitrinellinae
Subtaxa: Tornus (Tornus), Tornus aquitanicus, Tornus basiglabra, Tornus belgicus, Tornus blesense, Tornus dolfusi, Tornus dysoristus, Tornus kuemeli, Tornus sinuosus, Tornus varius
Type: Helix subcarinata
Ecology: epifaunal grazer