mucinivorans mucinivorans mucinivorans is an anaerobic bacterial genus from the family of rikenellaceae with one known species (mucinivorans hirudinis). mucinivorans hirudinis has been isolated from the digestrive tract of the leech hirudo verbana. mucinivorans scientific classification domain: bacteria phylum: bacteroidota class: bacteroidia order: bacteroidales family: rikenellaceae genus: mucinivoransnelson et al. 2015 type species mucinivorans hirudinis species m. hirudinis