title: Three new species of monogenetic trematodes from the gills of Lepomis cyanellus Rafinesque and Lepomis megalotis Rafinesque of Texas and the proposal of a new genus, Macrohaptor.
mesh_terms: D000818:Animals; D004463:Ecology; D005399:Fishes; D005880:Gills; D013781:Texas; D014200:Trematoda / Q000033:anatomy & histology / Q000145:classification*