| supplemental diagnosis of gyrodactylus fairporti van cleave, 1921 (monogenea) from 1 month old black bullhead (ameiurus melas) in riverside pools in wisconsin. | samples of gyrodactylus fairporti van cleave, 1921 from young-of-the-year black bullhead (ameiurus melas) stranded in riverside pools of the black river (la crosse county,) wi, usa, are used to supplement the species diagnosis, including new details on the marginal hook sickles, the male copulatory organ (mco), and 18s rrna gene sequence data. the anchors of g. fairporti are relatively long and thin, 58.2 ± 1.2 μm in length; roots 15.5 ± 1.0 μm; shaft 38.1 ± 1.5 μm; point 31.3 ± 1.5 μm. the vent ... | 2018 | 29453648 |