nonlabens ulvanivorans nonlabens ulvanivorans nonlabens ulvanivorans is a gram-negative, strictly aerobic, rod-shaped, chemoorganotrophic and non-motile bacterium from the genus of nonlabens which has been isolated from the faeces of the sea slug aplysia punctata. nonlabens ulvanivorans scientific classification domain: bacteria phylum: bacteroidota class: flavobacteriia order: flavobacteriales family: flavobacteriaceae genus: nonlabens species: n. ulvanivorans binomial name nonlabens ulvanivorans(barbeyron et al. 2011) yi and chun 2012 type strain plr synonyms persicivirga ulvanivorans