sailors' eyeballs
... that "sailors' eyeballs" is one of the largest single-celled organisms?
... that "<b id="mwGTM"><a href="./Valonia_ventricosa" id="mwGTQ" rel="mw:WikiLink" title="Valonia ventricosa">sailors' eyeballs</a></b>" <i id="mwGTU">(pictured)</i> is one of the largest <a href="./Microorganism" id="mwGTY" rel="mw:WikiLink" title="Microorganism">single-celled organisms</a>?