Papillifera bidens
... that the Mediterranean land snail species Papillifera bidens lived in England for over 100 years before being discovered?
... that the <a href="./Mediterranean_Basin" id="mwFHA" rel="mw:WikiLink" title="Mediterranean Basin">Mediterranean</a> <a href="./Land_snail" id="mwFHE" rel="mw:WikiLink" title="Land snail">land snail</a> species <i id="mwFHI"><b id="mwFHM"><a class="mw-redirect" href="./Papillifera_bidens" id="mwFHQ" rel="mw:WikiLink" title="Papillifera bidens">Papillifera bidens</a></b></i> lived in <a href="./List_of_non-marine_molluscs_of_Great_Britain" id="mwFHU" rel="mw:WikiLink" title="List of non-marine molluscs of Great Britain">England</a> for over 100 years before being discovered?