sand diver
... that the eyes of the sand diver have an iridescent surface layer?
... that the eyes of the <b id="mwBxQ"><a href="./Synodus_intermedius" id="mwBxU" rel="mw:WikiLink" title="Synodus intermedius">sand diver</a></b> <i id="mwBxY">(pictured)</i> have an iridescent surface layer?