| ligictaluridus michaelalicea n. sp. (monogenea: dactylogyridae) from flathead catfish (pylodictis olivaris) in the upper mississippi river, including remarks on taxonomy influencing monogenean treatment regulation in the united states. | ligictaluridus michaelalicea n. sp. (monogenea: dactylogyridae, ancyrocephalinae) is described from the gills of pylodictis olivaris (siluriformes: ictaluridae) from wisconsin and iowa portions of the upper mississippi river. diagnostic features include a relatively large, strongly curved tubular cirrus with minor terminal flare; an accessory piece with a prominent basal lobe and a simple, thick terminal limb featuring a thin lateral flange and blunt distal tip devoid of recurved hooks. the sini ... | 2018 | 29362870 |