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Genus	Species
Alpharetrovirus	21
Avihepadnavirus	4
Badnavirus	143
Betaretrovirus	26
Bovispumavirus	1
Caulimovirus	24
Cavemovirus	4
Deltaretrovirus	9
Dioscovirus	1
Epsilonretrovirus	3
Equispumavirus	1
Errantivirus	12
Felispumavirus	2
Gammaretrovirus	49
Herpetohepadnavirus	1
Intracisternal A-particles	6
Lentivirus	21
Metahepadnavirus	8
Metavirus	4
Orthohepadnavirus	34
Parahepadnavirus	1
Petuvirus	1
Prosimiispumavirus	1
Pseudovirus	0
Rosadnavirus	2
Ruflodivirus	1
Simiispumavirus	15
Solendovirus	2
Soymovirus	9
Spumavirus	11
Tungrovirus	2
Vaccinivirus	1