thiohalorhabdus thiohalorhabdus thiohalorhabdus is a gram-negative, extremely halophilic and non-motile genus of bacteria from the class gammaproteobacteria with one known species (thiohalorhabdus denitrificans). thiohalorhabdus denitrificans has been isolated from sediments from a hypersaline lake from siberia in russia. thiohalorhabdus scientific classification domain: bacteria phylum: pseudomonadota class: gammaproteobacteria order: incertae sedis family: incertae sedis genus: thiohalorhabdussorokin et al. 2008 type species thiohalorhabdus denitrificans species t. denitrificans