bacillus arseniciselenatis bacillus arseniciselenatis bacillus arseniciselenatis is a bacterium first isolated from mono lake, california. it is notable for respiring oxyanions of selenium and arsenic. it is spore-forming, rod-shaped and alkaliphile, its type strain being e1h. it is a strict anaerobe. bacillus arseniciselenatis scientific classification domain: bacteria phylum: bacillota class: bacilli order: bacillales family: bacillaceae genus: bacillus species: b. arseniciselenatis binomial name bacillus arseniciselenatisblum et al., 1998