Fish-eating rat can refer to several related semiaquatic South American rodents of tribe Ichthyomyini: Anotomys, one species: Ecuador fish-eating rat, fish-eating rat or aquatic rat (A. leander) Neusticomys, six species: Ferreira's fish-eating rat (N. ferreirai) Montane fish-eating rat (N. monticolus) Musso's fish-eating rat (N. mussoi) Oyapock's fish-eating rat (N. oyapocki) Peruvian fish-eating rat (N. peruviensis) Venezuelan fish-eating rat (N. venezuelae)