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VALVATOIDEA Gray, J.E., 1840

VALVATIDAE Gray, J.E., 1840 Type Genus : Valvata Müller, O.F., 1774 ThumbNails
CORNIROSTRIDAE Ponder, W.F., 1990 Type Genus : Cornirostra Ponder, W.F., 1990 ThumbNails
HYALOGYRINIDAE Warén, A. & Ph. Bouchet, 1993 Type Genus : Hyalogyrina Marshall, B.A., 1988 ThumbNails