Gyrodactylus molweni sp. n. is described from the body surface and fins of South African mullet, Chelon richardsonii (Smith, 1846) collected Table Bay Harbour, Cape Town compared to five other species grey mullets globally namely G. zhukovi Ling, 1963 mugili Zhukov, 1970 Planiliza haematocheila (Temminck Schlegel, 1845); mugelus Rawson, 1973 Mugil cephalus L.; curemae Conroy Conroy, 1985 curema...