Acidianus sulfidivorans  Acidianus sulfidivorans is a species of archaeon. It is an extremely thermoacidophilic, obligately chemolithotrophic archaeon. It was first isolated from a solfatara on Lihir Island. Its cells are non-motile, Gram-negative, irregular-shaped cocci, 0.5-1.5 micrometres in size. It oxidises sulphur. The type strain is JP7(T) (=DSM 18786(T)=JCM 13667(T)).