Neapolitan spurilla
... that the Neapolitan spurilla defends itself with stinging cells derived from the sea anemones it eats?
... that the <b id="mwB6w"><a href="./Spurilla_neapolitana" id="mwB60" rel="mw:WikiLink" title="Spurilla neapolitana">Neapolitan spurilla</a></b> <i id="mwB64">(pictured)</i> defends itself with <a href="./Cnidocyte" id="mwB68" rel="mw:WikiLink" title="Cnidocyte">stinging cells</a> derived from the <a href="./Sea_anemone" id="mwB7A" rel="mw:WikiLink" title="Sea anemone">sea anemones</a> it eats?