title: The monogenean Quadriacanthus kearni n.sp. and a report of Q. clariadis clariadis Paperna, 1979 on the gills of Clarias lazera in Nile Delta.
mesh_terms: D000818:Animals; D004534:Egypt; D005399:Fishes / Q000469:parasitology*; D005880:Gills / Q000469:parasitology*; D014200:Trematoda / Q000033:anatomy & histology*