twelve-tentacled parasitic anemone
... that soon after being ingested by the gregarious jellyfish, the larvae of the developing twelve-tentacled parasitic anemone will eat the jellyfish's gonads?
... that soon after being ingested by the <a href="./Clytia_gregaria" id="mwA4Y" rel="mw:WikiLink" title="Clytia gregaria">gregarious jellyfish</a>, the <a href="./Planula" id="mwA4c" rel="mw:WikiLink" title="Planula">larvae</a> of the developing <b id="mwA4g"><a href="./Peachia_quinquecapitata" id="mwA4k" rel="mw:WikiLink" title="Peachia quinquecapitata">twelve-tentacled parasitic anemone</a></b> will eat the jellyfish's gonads?