gut-like sea cucumber
... that the gut-like sea cucumber moves by peristalsis because it has no tube feet?
... that the <b id="mwCVg"><a href="./Synaptula_recta" id="mwCVk" rel="mw:WikiLink" title="Synaptula recta">gut-like sea cucumber</a></b> moves by <a href="./Peristalsis" id="mwCVo" rel="mw:WikiLink" title="Peristalsis">peristalsis</a> because it has no <a href="./Tube_feet" id="mwCVs" rel="mw:WikiLink" title="Tube feet">tube feet</a>?