original description(ofValvata piscinaloides var. berthoni Fontannes, 1883 †)Fontannes, F. (1883). Diagnoses d'espèces et de variétés nouvelles des terrains tertiaires du bassin du Rhône. Mougin-Rusand, Lyon, 9 p. page(s): 5, pl. 1, figs 11, 12 [details]
Present Inaccurate Introduced: alien Containing type locality
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