Ophiocoma echinata
... that despite being radially symmetric, the brittle star Ophiocoma echinata has a leading arm when moving?
... that despite being <a class="mw-redirect" href="./Radially_symmetric" id="mwCTI" rel="mw:WikiLink" title="Radially symmetric">radially symmetric</a>, the brittle star <i id="mwCTM"><b id="mwCTQ"><a href="./Ophiocoma_echinata" id="mwCTU" rel="mw:WikiLink" title="Ophiocoma echinata">Ophiocoma echinata</a></b></i> has a leading arm when moving?