amphritea balenae amphritea balenae amphritea balenae is a gram-negative, rod-shaped, non-spore-forming and motile bacterium from the genus of amphritea which has been isolated from sediments near a sperm whale carcasses from kagoshima on japan. amphritea balenae scientific classification domain: bacteria phylum: pseudomonadota class: gammaproteobacteria order: oceanospirillales family: oceanospirillaceae genus: amphritea species: a. balenae binomial name amphritea balenaegärtner et al. 2008 type strain atcc baa-1529, jamm 1525, jcm 14781