Beddomeia lodderae is a tiny (2-3 mm) freshwater snail occurring in a tributary of Castra Rivulet, near Nietta, in central northern Tasmania. The species has an extremely narrow range, known only from one stream. The principal threats to B. lodderae are domestic and agricultural land usage which can result in habitat modification or degradation. B. lodderae may also be impacted by competition with and displacement by the exotic snail Potamopyrgus antipodarum (New Zealand hydrobiid). The principal management objectives for B. lodderae include preventing the loss or degradation of habitat supporting known populations, identification of new subpopulations, increasing public awareness of the species, and improving the species' reservation status.