lamprobacter lamprobacter lamprobacter is a gram-negative, rod-shaped and motile genus of bacteria from the family of chromatiaceae with one known species (lamprobacter modestohalophilus). the habitat of lamprobacter bacteria is hydrogen sulfide-containing mud and saline water. lamprobacter scientific classification domain: bacteria phylum: pseudomonadota class: gammaproteobacteria order: chromatiales family: chromatiaceae genus: lamprobactergorlenko et al. 1988 type species lamprobacter modestohalophilus species l. modestohalophilus