enhydrobacter enhydrobacter enhydrobacter is a genus of bacteria which belongs to the class alphaproteobacteria. so far, only one species is known (enhydrobacter aerosaccus). enhydrobacter has been discussed to be reclassified to the family rhodospirillaceae and the class alphaproteobacteria. because of its oxidase positive it can not be placed in the family enterobacteriaceae as it is not a parasite of birds or mammals. enhydrobacter scientific classification domain: bacteria phylum: pseudomonadota class: gammaproteobacteria order: pseudomonadales family: moraxellaceae genus: enhydrobacterstaley et al. 1987 type species enhydrobacter aerosaccus species enhydrobacter aerosaccus