Genus Bacillus, Paenibacillus
and species from genera Anaerobacillus, Aneurinibacillus, Brevibacillus,  Geobacillus,
Lysinibacillus, Psychrobacillus, Pullulanibacillus, Rummeliibacillus,  Solibacillus,
Virgibacillus, Viridibacillus, Salimicrobium & Sporosarcina
Bacillus acidiceler
Bacillus acidiproducens
Bacillus aeolius
Bacillus aerius *
Bacillus agaradhaerens *
Bacillus aidingensis
Bacillus alcalophilus
Bacillus algicola *
Bacillus altitudinis *
Bacillus amyloliquefaciens **
Bacillus aminovorans
Bacillus anthracis
Bacillus aquimaris
Bacillus asahii
Bacillus atrophaeus  (split from B. subtilis)
Bacillus azotoformans *
Bacillus badius
Bacillus barbaricus
Bacillus bataviensis
Bacillus benzoevorans
Bacillus canaveralius
Bacillus carboniphilus
Bacillus cereus
Bacillus cibi
Bacillus circulans
Bacillus clarkii *
Bacillus clausii *
Bacillus coagulans
Bacillus cohnii *
Bacillus cirroflagelosus
Bacillus decolorationis
Bacillus drentensis
Bacillus endophyticus
Bacillus epiphytus
Bacillus farraginis
Bacillus fastidiosus *
Bacillus filicolonicus
Bacillus firmus
Bacillus flexus
Bacillus fordii
Bacillus fortis
Bacillus freudenreichii
Bacillus fumarioli
Bacillus funiculus *
Bacillus galactosidilyticus
Bacillus galliciensis *
Bacillus gelatini
Bacillus gibsonii *
Bacillus halmapalus *
Bacillus halodurans *
Bacillus horikoshii *
Bacillus horneckiae
Bacillus horti
Bacillus hwajinpoensis
Bacillus indicus *
Bacillus infernus *
Bacillus insolitus  (moved to Psychrobacillus)
Bacillus isabeliae
Bacillus jeotgali
Bacillus koreensis *
Bacillus korlensis
Bacillus krulwichiae
Bacillus lentus
Bacillus licheniformis
Bacillus luciferensis
Bacillus macroides  (see also B. simplex)
Bacillus macyae *
Bacillus marisflavi
Bacillus megaterium
Bacillus methanolicus
Bacillus mojavensis * (see also B. subtilis)
Bacillus muralis
Bacillus mycoides
Bacillus nealsonii
Bacillus neizhouensis
Bacillus niabensis *
Bacillus niacini
Bacillus novalis
Bacillus okuhidensis *
Bacillus oleronius
Bacillus oshimensis
Bacillus polygoni
Bacillus pseudalcaliphilus *
Bacillus pseudofirmus *
Bacillus pseudomycoides *
Bacillus psychrosaccharolyticus
Bacillus pumilus
Bacillus ruris
Bacillus safensis  (very similar to B. pumilus)
Bacillus schlegelii *
Bacillus selenitireducens *
Bacillus shackletonii
Bacillus siamensis
Bacillus simplex
Bacillus siralis
Bacillus smithii
Bacillus soli
Bacillus sonorensis *
Bacillus sporothermodurans
Bacillus subtilis
Bacillus subterraneus
Bacillus tequilensis (closely related to B. subtilis)
Bacillus thermoamylovorans
Bacillus thermocloacae *
Bacillus thuringiensis
Bacillus trypoxylicola
Bacillus vallismortis * (closely related to B. subtilis)
Bacillus vedderi *
Bacillus vietnamensis
Bacillus vireti
Bacillus wakoensis *
Bacillus weihenstephanensis *
Gram positive (or positive only in early stages of growth), rod shaped cells, mostly straight, 0.3-2.2 x
1.2-7 μm. Majority motile with lateral flagella. Heat-resistant endospores formed. Chemoorganotrophs;
strict aerobes or facultative anaerobes. Some characters (like vegetative cell wall, glucose
fermentation, growth temperature etc.) are very variable.
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Paenibacillus aestuarii
Paenibacillus agarexedens
Paenibacillus agaridevorans
Paenibacillus alginolyticus
Paenibacillus alkaliterrae *
Paenibacillus alvei
Paenibacillus amylolyticus
Paenibacillus anaericanus *
Paenibacillus antarcticus
Paenibacillus apiarius
Paenibacillus assamensis
Paenibacillus azoreducens
Paenibacillus barcinonensis
Paenibacillus barengoltzii *
Paenibacillus borealis
Paenibacillus brasilensis
Paenibacillus castaneae
Paenibacillus cellulositrophicus
Paenibacillus chibensis
Paenibacillus chinjuensis
Paenibacillus chondroitinus
Paenibacillus cineris
Paenibacillus contaminans
Paenibacillus cookii
Paenibacillus curdlanolyticus
Paenibacillus dendritiformis *
Paenibacillus elgii *
Paenibacillus favisporus *
Paenibacillus glucanolyticus
Paenibacillus graminis
Paenibacillus jamilae
Paenibacillus illinoisensis
Paenibacillus konsidensis
Paenibacillus koreensis
Paenibacillus kribbensis
Paenibacillus lactis
Paenibacillus larvae larvae
Paenibacillus larvae pulvifaciens
Paenibacillus lautus
Paenibacillus lentimorbus
Paenibacillus macquariensis
Paenibacillus macerans
Paenibacillus massiliensis
Paenibacillus mendelii
Paenibacillus montaniterrae
Paenibacillus nanensis
Paenibacillus naphthalenovorans
Paenibacillus nematophilus
Paenibacillus odorifer
Paenibacillus pabuli
Paenibacillus panacisoli
Paenibacillus pasadenensis *
Paenibacillus pectinilyticus
Paenibacillus peoriae
Paenibacillus phyllosphaerae *
Paenibacillus polymyxa
Paenibacillus popilliae
Paenibacillus prosopidis
Paenibacillus provencensis
Paenibacillus residui
Paenibacillus sanguinis
Paenibacillus septentrionalis
Paenibacillus siamensis
Paenibacillus sputi
Paenibacillus terrae
Paenibacillus timonensis
Paenibacillus thailandensis
Paenibacillus thiaminolyticus
Paenibacillus turicensis
Paenibacillus urinalis
Paenibacillus validus
Paenibacillus wynnii
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* species not included in ABIS biochemical database
** species not included in ABIS molecular database
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NOTES

According to Genersch et
al. 2006, P. larvae subsp.
pulvifaciens and P. larvae
subsp. larvae are
reclassified as a single
species: P. larvae

Strains of B. carotarum, B.
capri, B. cobayae, B.
musculi, B. maroccanus &
B. macroides were
reclassified as Bacillus
simplex by Heyrman et al.
2005

According to Wang et al.
2007, B. mojavensis  is an
earlier heterotypic synonym
of  Bacillus axarquiensis  
and Bacillus malacitensis.

B. cirroflagelosus, B.
epiphytus & B. filicolonicus
ZoBell and Upham (1944)
are not included in Euzeby's
LPSN or in Bergey's Manual
Vol. 3, 2009. They may not
be considered valid species.