Freshwater snail

Freshwater snail

Observation - Freshwater snail. Description: Observed near Bingley Island, Canterbury, in the Stour. This snail is quite small, approx. 1cm in length, with an operculum I think, was thinking family Neritidae perhaps, but very unsure. Is the shell dextral? Anyone in the know, please help. Thanks!!

Observed near Bingley Island, Canterbury, in the Stour. This snail is quite small, approx. 1cm in length, with an operculum I think, was thinking family Neritidae perhaps, but very unsure. Is the shell dextral? Anyone in the know, please help. Thanks!!