Oxygyrus keraudrenii
... that the snail species Oxygyrus keraudrenii shows an evolutionary reduction of the gastropod shell for living in open sea?
... that the snail species <i id="mwA5E"><b id="mwA5I"><a class="mw-redirect" href="./Oxygyrus_keraudrenii" id="mwA5M" rel="mw:WikiLink" title="Oxygyrus keraudrenii">Oxygyrus keraudrenii</a></b></i> shows an <a href="./Evolution" id="mwA5Q" rel="mw:WikiLink" title="Evolution">evolutionary</a> reduction of the <a href="./Gastropod_shell" id="mwA5U" rel="mw:WikiLink" title="Gastropod shell">gastropod shell</a> for living in open sea?