Article: Case 3008. Euchilus Sandberger, 1870 and Stalioa Brusina, 1870 (Mollusca, Gastropoda): proposed designation of Bithinia deschiensiana Deshayes, 1862 and Paludina desmarestii Prévost, 1821 as the respective type species, with the conservation of Bania Brusina, 1896