craurococcus craurococcus craurococcus is a gram-negative and non-motile genus of bacteria from the family of acetobacteraceae with one known species (craurococcus roseus). craurococcus scientific classification domain: bacteria phylum: pseudomonadota class: alphaproteobacteria order: rhodospirillales family: acetobacteraceae genus: craurococcussaitoh et al. 1998 species c. roseus