EpsilonretrovirusEpsilonretrovirus is a genus of viruses in the family Retroviridae.TaxonomyThe genus contains the following species, listed by scientific name and followed by the exemplar virus of the species:Epsilonretrovirus waldersar, Walleye [dermal sarcoma virus]Epsilonretrovirus walepihyp1, Walleye [epidermal hyperplasia virus 1]Epsilonretrovirus walepihyp2, Walleye [epidermal hyperplasia virus 2]