oceanisphaera avium oceanisphaera avium oceanisphaera avium is a gram-negative and aerobic bacterium from the genus of oceanisphaera which has been isolated from the gut of the raptorial bird aegypius monachus from the seoul grand park zoo in south korea. oceanisphaera avium scientific classification domain: bacteria phylum: pseudomonadota class: gammaproteobacteria order: aeromonadales family: aeromonadaceae genus: oceanisphaera species: o. avium binomial name oceanisphaera aviumsung et al. 2018 type strain jcm 32207, kctc 62118, amac2203