Methanoculleus hydrogenitrophicus is a methanogen.
References
Further reading Schaechter, Moselio. Encyclopedia of microbiology. Academic Press, 2009. Horikoshi, Koki, ed. Extremophiles Handbook:... Vol. 1. Springer, 2011.
External links LPSN Type strain of Methanoculleus hydrogenitrophicus at BacDive - the Bacterial Diversity Metadatabase