Piscicola geometra
... that the gut of Piscicola geometra harbours symbiotic bacteria which help the leech to digest fish blood?
... that the gut of <i id="mwA2E"><b id="mwA2I"><a href="./Piscicola_geometra" id="mwA2M" rel="mw:WikiLink" title="Piscicola geometra">Piscicola geometra</a></b></i> harbours <a href="./Symbiosis" id="mwA2Q" rel="mw:WikiLink" title="Symbiosis">symbiotic</a> bacteria which help the leech to digest fish blood?