labrys (bacterium) labrys (bacterium) labrys is a genus of bacteria from the family xanthobacteraceae. labrys scientific classification domain: bacteria phylum: pseudomonadota class: alphaproteobacteria order: hyphomicrobiales family: xanthobacteraceae genus: labrysvasilyeva and semenov 1985 type species labrys monachus species l. methylaminiphilus miller et al. 2005 l. miyagiensis islam et al. 2007 l. monachus corrig. vasilyeva and semenov 1985 l. neptuniae chou et al. 2007 l. okinawensis islam et al. 2007 l. portucalensis carvalho et al. 2008 l. soli nguyen et al. 2015 l. wisconsinensis albert et al. 2010