Theromyzon tessulatum
... that the leech Theromyzon tessulatum is a parasite of waterfowl, invading their mouths, noses, and respiratory passages?
... that the leech <i id="mwAyc"><b id="mwAyg"><a href="./Theromyzon_tessulatum" id="mwAyk" rel="mw:WikiLink" title="Theromyzon tessulatum">Theromyzon tessulatum</a></b></i> is a parasite of waterfowl, invading their mouths, noses, and respiratory passages?