"pseudorhabdosynochus querni" is a small monogenean, 0.45-0.7 mm in length. the species has the general characteristics of other species of "pseudorhabdosynochus", with a flat body and a posterior haptor, which is the organ by which the monogenean attaches itself to the gill of is host. the haptor bears two squamodiscs, one ventral and one dorsal.