The only member of this genus infects Proteus mirabilis (Tran et al., 2019). The genome of Proteus phage Myduc is 53.39 kbp (39.3 %G+C) and encodes 79 proteins.
Species demarcation criteria
There is only one species in the genus. Members of this species are more than 95% identical in genome nucleotide sequence, including the terminal repeat region. Viruses with genomes that differ by more than 5% will be assigned to different species.