Opinion 1965. <em>Euchilus Sandberger</em>, 1870 and <em>Stalioa</em> Brusina, 1870 (Mollusca: Gastropoda): <em>Bithinia deschiensiana</em> Deshayes, 1862 and <em>Paludina desmarestii</em> Prévost, 1821 designated as the respective type species, with the conservation of <em>Bania</em> Brusina, 1896