oceanisphaera arctica oceanisphaera arctica oceanisphaera arctica is a gram-negative, coccoid and non-motile bacterium from the genus of oceanisphaera which has been isolated from marine sediments from kongsfjorden. oceanisphaera arctica scientific classification domain: bacteria phylum: pseudomonadota class: gammaproteobacteria order: aeromonadales family: aeromonadaceae genus: oceanisphaera species: o. arctica binomial name oceanisphaera arcticasrinivas et al. 2012 type strain ccug 58690, kctc 23013, nbrc 106171, strain v1-41