spiribacter spiribacter spiribacter is a genus of bacteria from the family of ectothiorhodospiraceae. spiribacter scientific classification domain: bacteria phylum: pseudomonadota class: gammaproteobacteria order: chromatiales family: ectothiorhodospiraceae genus: spiribacterleon et al. 2014 type species spiribacter salinus species s. aquaticus s. curvatus s. roseus s. salinus s. vilamensis synonyms halopeptonella menes et al. 2016