ladder hornsnails
... that juvenile ladder hornsnails tend to live underwater while the adults mostly live above the high water mark?
... that juvenile <b id="mwAq8"><a href="./Cerithideopsis_scalariformis" id="mwArA" rel="mw:WikiLink" title="Cerithideopsis scalariformis">ladder hornsnails</a></b> tend to live underwater while the adults mostly live above the high water mark?