the root (no rank)
Viruses (domain)
retroid viruses (subkingdom)
Retroviridae (family)
Orthoretrovirinae (subfamily)
Epsilonretrovirus (genus)
walleye dermal sarcoma virus (species)
[hide inferior taxa]
walleye epidermal hyperplasia virus type 1 (subspecies)
walleye epidermal hyperplasia virus type 2 (subspecies)