Viviparus georgianus
... that the freshwater snail Viviparus georgianus , the "banded mystery snail", is native to the southeastern U.S. but is an introduced species in the northern U.S. and Canada?
... that the <a class="mw-redirect" href="./Freshwater" id="mwBnI" rel="mw:WikiLink" title="Freshwater">freshwater</a> <a href="./Snail" id="mwBnM" rel="mw:WikiLink" title="Snail">snail</a> <i id="mwBnQ"><b id="mwBnU"><a href="./Viviparus_georgianus" id="mwBnY" rel="mw:WikiLink" title="Viviparus georgianus">Viviparus georgianus</a></b></i> <i id="mwBnc">(pictured)</i>, the "banded mystery snail", is native to the southeastern <a href="./Fauna_of_the_United_States" id="mwBng" rel="mw:WikiLink" title="Fauna of the United States">U.S.</a> but is an <a href="./Introduced_species" id="mwBnk" rel="mw:WikiLink" title="Introduced species">introduced species</a> in the northern U.S. and <a href="./Fauna_of_Canada" id="mwBno" rel="mw:WikiLink" title="Fauna of Canada">Canada</a>?