amphritea ceti amphritea ceti amphritea ceti is a gram-negative, aerobic, rod-shaped and non-spore-forming bacterium from the genus of amphritea which has been isolated from the faeces from a beluga whale from the yeosu aquarium on korea. amphritea ceti scientific classification domain: bacteria phylum: pseudomonadota class: gammaproteobacteria order: oceanospirillales family: oceanospirillaceae genus: amphritea species: a. ceti binomial name amphritea cetikim et al. 2014 type strain ra1, kctc 42154, nbrc 110551