Tags: Archaea.
Thermococcus stetteri is an extremely thermophilic marine sulfur-metabolizing archaebacterium. It is anaerobic its cells being irregular cocci 1 to 2 μm in diameter. Of the strains first isolated two were motile due to a tuft of flagella while the other two strains were non-motile. Its type strain is K-3 (DSM 5262).