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FMIB Catfish infected with the parasite Ichthyophtherius multifilis.jpeg Catfish infected with the parasite Ichthyophtherius multifilis Subject FishesDiseases CatfishesDiseasesd FishesParasites Tag Fish Cite book Ichthyophthirius Diseas of Fishes and Methods of Control Report of the United States Commissioner of Fisheries for the