C. absonum
C. aceticum
C. acetireducens
C. acetobutylicum
C. acidisoli
C. aciditolerans
C. acidurici
C. aerotolerans
C. aestuarii
C. akagii
C. aldenense
C. aldrichii
C. algidicarnis
C. algidixylanolyticum
C. algifaecis
C. algoriphilum
C. alkalicellulosi
C. aminophilum
C. aminovalericum
C. amygdalinum
C. amylolyticum
C. arbusti
C. arcticum
C. argentinense
C. asparagiforme
C. aurantibutyricum
C. baratii
C. barkeri
C. bartlettii
C. beijerinckii
C. bifermentans
C. bolteae
C. bornimense
C. botulinum
C. bowmanii
C. bryantii
C. butyricum
C. cadaveris
C. caenicola
C. caminithermale
C. carboxidivorans
C. carnis
C. cavendishii
C. celatum
C. celerecrescens
C. cellobioparum
C. cellulofermentans
C. cellulolyticum
C. cellulosi
C. cellulovorans
C. chartatabidum
C. chauvoei
C. chromiireducens
C. citroniae
C. clariflavum
C. clostridioforme
C. coccoides
C. cochlearium
C. cocleatum
C. colicanis
C. colinum
C. collagenovorans
C. cylindrosporum
C. difficile
C. diolis
C. disporicum
C. drakei
C. durum
C. estertheticum
C. fallax
C. felsineum
C. fervidum
C. fimetarium
C. formicaceticum
C. frigidicarnis
C. frigoris
C. ganghwense
C. gasigenes
C. ghonii
C. glycolicum
C. glycyrrhizinilyticum
C. grantii
C. haemolyticum
C. halophilum
C. hastiforme
C. hathewayi
C. herbivorans
C. hiranonis
C. histolyticum
C. homopropionicum
C. huakuii
C. hungatei
C. hydrogeniformans
C. hydroxybenzoicum
C. hylemonae
C. jejuense
C. indolis
C. innocuum
C. intestinale
C. irregulare
C. isatidis
C. josui
C. kluyveri
C. lactatifermentans
C. lacusfryxellense
C. laramiense
C. lavalense
C. lentocellum
C. lentoputrescens
C. leptum
C. limosum
C. litorale
C. lituseburense
C. ljungdahlii
C. lortetii
C. lundense
C. magnum
C. malenominatum
C. mangenotii
C. mayombei
C. methoxybenzovorans
C. methylpentosum
C. neopropionicum
C. nexile
C. nitrophenolicum
C. novyi
C. oceanicum
C. orbiscindens
C. oroticum
C. oxalicum
C. papyrosolvens
C. paradoxum
C. paraperfringens(Alias: C. welchii)
C. paraputrificum
C. pascui
C. pasteurianum
C. peptidivorans
C. perenne
C. perfringens
C. pfennigii
C. phytofermentans
C. piliforme
C. polysaccharolyticum
C. populeti
C. propionicum
C. proteoclasticum
C. proteolyticum
C. psychrophilum
C. puniceum
C. purinilyticum
C. putrefaciens
C. putrificum
C. quercicolum
C. quinii
C. ramosum
C. rectum
C. roseum
C. saccharobutylicum
C. saccharogumia
C. saccharolyticum
C. saccharoperbutylacetonicum
C. sardiniense
C. sartagoforme
C. scatologenes
C. schirmacherense
C. scindens
C. septicum
C. sordellii
C. sphenoides
C. spiroforme
C. sporogenes
C. sporosphaeroides
C. stercorarium
C. sticklandii
C. straminisolvens
C. subterminale
C. sufflavum
C. sulfidigenes
C. symbiosum
C. tagluense
C. tepidiprofundi
C. termitidis
C. tertium
C. tetani
C. tetanomorphum
C. thermaceticum
C. thermautotrophicum
C. thermoalcaliphilum
C. thermobutyricum
C. thermocellum
C. thermocopriae
C. thermohydrosulfuricum
C. thermolacticum
C. thermopalmarium
C. thermopapyrolyticum
C. thermosaccharolyticum
C. thermosuccinogenes
C. thermosulfurigenes
C. thiosulfatireducens
C. tyrobutyricum
C. uliginosum
C. ultunense
C. villosum
C. vincentii
C. viride
C. xylanolyticum
C. xylanovorans
Clostridium ialah satu genus bakterium gram-positif yang tergolong dalam Firmicutes. Ia merupakan anaerob obligat yang mampu menghasilkan endospora.[1][2] Sel-sel individu berbentuk basilus, yang memberinya nama-namanya, daripada kloster (κλωστήρ) atau gelendong dalam bahasa Yunani. Ciri-ciri ini secara tradisionalnya mentakrifkan genus ini; tetapi banyak spesies yang pada asalnya dikelaskan sebagai Clostridium telah dikelaskan semula dalam genus-genus lain.