Validly published names of genera of the domain (or empire) of Bacteria (or Eubacteria)

J.P. Euzéby: List of Prokaryotic names with Standing in Nomenclature

Validly published names of genera of the domain (or empire) of Bacteria (or Eubacteria)

A - B - C - D - E - F - G - H - I - J - K - L - M - N - O - P - Q - R - S - T - U - V - W - X - Y - Z

Abiotrophia
Acanthopleuribacter
Acaricomes
Acetanaerobacterium
Acetitomaculum
Acetivibrio
Acetoanaerobium
Acetobacter
....Acetobacter (subgen. Acetobacter)
....Acetobacter (subgen. Gluconoacetobacter)
Acetobacterium
Acetofilamentum
Acetogenium
Acetohalobium
Acetomicrobium
Acetonema
Acetothermus
Acholeplasma
Achromatium
Achromobacter
Acidaminobacter
Acidaminococcus
Acidicaldus
Acidimicrobium
Acidiphilium
Acidisoma
Acidisphaera
Acidithiobacillus
Acidobacterium
Acidocella
Acidomonas
Acidothermus
Acidovorax
Acinetobacter
Acrocarpospora
Actibacter
Actinoallomurus
Actinoalloteichus
Actinobacillus
Actinobaculum
Actinobispora
Actinocatenispora
Actinocorallia
Actinokineospora
Actinomadura
Actinomyces
Actinomycetospora
Actinoplanes
Actinopolymorpha
Actinopolyspora
Actinopycnidium
Actinospica
Actinosporangium
Actinosynnema
Actinotalea
Adhaeribacter
Adlercreutzia
Advenella
Aegyptianella
Aequorivita
Aeriscardovia
Aerococcus
Aeromicrobium
Aeromonas
Aestuariibacter
Aestuariicola
Aestuariimicrobium
Afifella
Afipia
Agarivorans
Aggregatibacter
Agitococcus
Agreia
Agrobacterium
Agrococcus
Agromonas
Agromyces
Ahrensia
Aidingimonas
Akkermansia
Albibacter
Albidiferax
Albidovulum
Albimonas
Alcaligenes
Alcalilimnicola. See: Alkalilimnicola
Alcanivorax
Algibacter
Algicola
Algoriphagus
Aliagarivorans
Alicycliphilus
Alicyclobacillus
Aliivibrio
Alishewanella
Alistipes
Alkalibacillus
Alkalibacter
Alkalibacterium
Alkaliflexus
Alkalilimnicola
Alkalimonas
Alkaliphilus
Alkalispirillum
Alkanibacter
Alkanindiges
Allisonella
Alloactinosynnema
Allobaculum
Allochromatium
Allofustis
Alloiococcus
Allokutzneria
Allomonas
Allorhizobium
Alloscardovia
Altererythrobacter
Alterococcus
Alteromonas
Alysiella
Amaricoccus
Ameyamaea
Aminiphilus
Aminobacter
Aminobacterium
Aminomonas
Ammonifex
Ammoniphilus
Amoebobacter
Amorphosporangium
Amorphus
Amphibacillus
Amphritea
Ampullariella
Amycolata
Amycolatopsis
Anaeroarcus
Anaerobacter
Anaerobaculum
Anaerobiospirillum
Anaerobranca
Anaerococcus
Anaerofilum
Anaerofustis
Anaeroglobus
Anaerolinea
Anaeromusa
Anaeromyxobacter
Anaerophaga
Anaeroplasma
Anaerorhabdus
Anaerosinus
Anaerosphaera
Anaerosporobacter
Anaerostipes
Anaerotruncus
Anaerovibrio
Anaerovirgula
Anaerovorax
Anaplasma
Ancalochloris
Ancalomicrobium
Ancylobacter
Anderseniella
Andreprevotia
Aneurinibacillus
Angiococcus
Angulomicrobium
Anoxybacillus
Anoxynatronum
Antarctobacter
Aquabacter
Aquabacterium
Aquamicrobium
Aquaspirillum
Aquicella
Aquifex
Aquiflexum
Aquimarina
Aquimonas
Aquincola
Aquisalibacillus
Aquisalimonas
Aquitalea
Arachnia
Arcanobacterium
Archangium
Arcicella
Arcobacter
Arenibacter
Arenimonas
Arhodomonas
Arsenicicoccus
Arsenophonus
Arthrobacter
Asaccharobacter
Asaia
Asanoa
Aspromonas
Asteroleplasma
Asticcacaulis
Atopobacter
Atopobium
Atopococcus
Atopostipes
Aurantimonas
Aureispira
Aureobacterium
Avibacterium
Azoarcus
Azohydromonas
Azomonas
Azomonotrichon
Azonexus
Azorhizobium
Azorhizophilus
Azospira
Azospirillum
Azotobacter
Azovibrio

Bacillus
Bacteriolyticum (illegitimate)
Bacterionema
Bacteriovorax
Bacteroides
Bactoderma
Balnearium
Balneatrix
Balneimonas
Balneola
Barnesiella
Bartonella
Basfia
Bavariicoccus
Bdellovibrio
Beggiatoa
Beijerinckia
Belliella
Bellilinea
Belnapia
Beneckea
Bergeriella
Bergeyella
Bermanella
Beutenbergia
Bhargavaea
Bibersteinia
Bifidobacterium
Bilophila
Biostraticola
Bizionia
Blastobacter
Blastochloris
Blastococcus
Blastomonas
Blastopirellula
Blattabacterium
Blautia
Bogoriella
Bordetella
Borrelia
Bosea
Bowmanella
Brachybacterium
Brachymonas
Brachyspira
Brackiella
Bradyrhizobium
Branhamella
Brenneria
Brevibacillus
Brevibacterium
Brevinema
Brevundimonas
Brochothrix
Brooklawnia
Brucella
Brumimicrobium
Bryantella
Bryobacter
Buchnera
Budvicia
Bulleidia
Burkholderia
Buttiauxella
Butyricicoccus
Butyricimonas
Butyrivibrio
Byssovorax

Caedibacter
Caenibacterium
Caenimonas
Caenispirillum
Caldalkalibacillus
Caldanaerobacter
Caldanaerobius
Caldanaerovirga
Calderobacterium
Caldicellulosiruptor
Caldicoprobacter
Caldilinea
Caldimicrobium
Caldimonas
Caldisericum
Calditerrivibrio
Caldithrix
Caloramator
Caloranaerobacter
Calymmatobacterium
Caminibacter
Caminicella
Campylobacter
Capnocytophaga
Capsularis
Carbophilus
Carboxydibrachium
Carboxydobrachium. See: Carboxydibrachium
Carboxydocella
Carboxydothermus
Cardiobacterium
Carnimonas
Carnobacterium
Caryophanon
Caseobacter
Castellaniella
Catellatospora
Catellibacterium
Catellicoccus
Catelliglobosispora
Catenibacterium
Catenococcus
Catenulispora
Catenuloplanes
Catonella
Caulobacter
Cedecea
Cellulomonas
Cellulophaga
Cellulosimicrobium
Cellvibrio
Centipeda
Cerasibacillus
Cerasicoccus
Cetobacterium
Chainia
Chelatobacter
Chelatococcus
Chelonobacter
Chimaereicella
Chitinibacter
Chitinilyticum
Chitinimonas
Chitiniphilus
Chitinophaga
Chlamydia
Chlamydophila
Chlorobaculum
Chlorobium
Chloroflexus
Chloroherpeton
Chloronema
Chondromyces
Chromatium
Chromobacterium
Chromohalobacter
Chryseobacterium
Chryseomonas
Chrysiogenes
Citreicella
Citreimonas
Citricoccus
Citrobacter
Clavibacter
Clevelandina
Cloacibacillus
Cloacibacterium
Clostridiisalibacter
Clostridium
Cobetia
Coenonia
Cohaesibacter
Cohnella
Collimonas
Collinsella
Colwellia
Comamonas
Conchiformibius
Conexibacter
Conglomeromonas
Congregibacter
Coprobacillus
Coprococcus
Coprothermobacter
Coraliomargarita
Corallococcus
Coriobacterium
Corynebacterium
Costertonia
Couchioplanes
Cowdria
Coxiella
Crabtreella
Craurococcus
Crenothrix
Crinalium (not validly published)
Cristispira
Croceibacter
Croceicoccus
Croceitalea
Crocinitomix
Cronobacter
Crossiella
Cryobacterium
Cryomorpha
Cryptanaerobacter
Cryptobacterium
Cryptosporangium
Cucumibacter
Cupriavidus
Curtobacterium
Curvibacter
Cyclobacterium
Cycloclasticus
Cystobacter
Cytophaga

Dactylosporangium
Daeguia
Dasania
Dechloromonas
Dechlorosoma
Deefgea
Deferribacter
Defluvibacter
Defluviicoccus
Dehalobacter
Dehalogenimonas
Dehalospirillum
Deinobacter
Deinococcus
Deleya
Delftia
Demequina
Demetria
Dendrosporobacter
Denitratisoma
Denitrobacterium
Denitrovibrio
Dermabacter
Dermacoccus
Dermatophilus
Derxia
Desemzia
Desmospora
Desulfacinum
Desulfarculus
Desulfatibacillum
Desulfatiferula
Desulfatirhabdium
Desulfitibacter
Desulfitobacterium
Desulfobacca
Desulfobotulus
Desulfobacter
Desulfobacterium
Desulfobacula
Desulfobulbus
Desulfocapsa
Desulfocella
Desulfococcus
Desulfocurvus
Desulfofaba
Desulfofrigus
Desulfofustis
Desulfoglaeba
Desulfohalobium
Desulfoluna
Desulfomicrobium
Desulfomonas
Desulfomonile
Desulfomusa
Desulfonatronospira
Desulfonatronovibrio
Desulfonatronum
Desulfonauticus
Desulfonema
Desulfonispora
Desulfopila
Desulforegula
Desulforhabdus
Desulforhopalus
Desulfosarcina
Desulfospira
Desulfosporosinus
Desulfotalea
Desulfothermus
Desulfotignum
Desulfotomaculum
Desulfovermiculus
Desulfovibrio
Desulfovirga
Desulfovirgula
Desulfurella
Desulfurispirillum
Desulfurispora
Desulfurivibrio
Desulfurobacterium
Desulfuromonas
Desulfuromusa
Dethiobacter
Dethiosulfatibacter
Dethiosulfovibrio
Devosia
Devriesea
Dialister
Diaphorobacter
Dichelobacter
Dichotomicrobium
Dickeya
Dictyoglomus
Dietzia
Dinoroseobacter
Diplocalyx
Dokdonella
Dokdonia
Dolosicoccus
Dolosigranulum
Donghaeana
Donghicola
Dorea
Duganella
Dyadobacter
Dyella
Dysgonomonas

Echinicola
Ectothiorhodosinus
Ectothiorhodospira
Edaphobacter
Edwardsiella
Effluviibacter
Eggerthella
Ehrlichia
Eikenella
Elioraea
Elizabethkingia
Elytrosporangium
Empedobacter
Emticicia
Endozoicomonas
Enhydrobacter
Enhygromyxa
Ensifer
Enterobacter
Enterococcus
Enterorhabdus
Enterovibrio
Entomoplasma
Eperythrozoon
Epilithonimonas
Eremococcus
Erwinia
Erysipelothrix
Erythrobacter
Erythromicrobium
Erythromonas
Escherichia
Ethanoligenens
Eubacterium
Eudoraea
Ewingella
Excellospora
Exiguobacterium
Exilispira

Fabibacter
Facklamia
Faecalibacterium
Faenia
Falcivibrio
Falsibacillus
Fangia
Fastidiosipila
Ferribacterium
Ferrimicrobium
Ferrimonas
Ferrithrix
Ferruginibacter
Fervidicola
Fervidobacterium
Fibrobacter
Filibacter
Filifactor
Filimonas
Filobacillus
Filomicrobium
Finegoldia
Flagellimonas
Flammeovirga
Flavimonas
Flaviramulus
Flavisolibacter
Flavobacterium
Flectobacillus
Flexibacter
Flexistipes
Flexithrix
Fluoribacter
Fluviicola
Fodinibacter
Fodinicola
Fodinicurvata
Fontibacillus
Formivibrio
Formosa
Francisella
Frankia
Frateuria
Friedmanniella
Frigoribacterium
Frondicola
Frondihabitans
Fructobacillus
Fulvibacter
Fulvimarina
Fulvimonas
Fulvivirga
Fundibacter
Fusibacter
Fusobacterium

Gaetbulibacter
Gaetbulicola
Gaetbulimicrobium
Galbibacter
Gallibacterium
Gallicola
Gallionella
Garciella
Gardnerella
Gelidibacter
Gelria
Gemella
Geminicoccus
Gemmata
Gemmatimonas
Gemmiger
Gemmobacter
Geoalkalibacter
Geobacillus
Geobacter
Geodermatophilus
Geopsychrobacter
Georgenia
Geosporobacter
Geothermobacter
Geothrix
Geotoga
Geovibrio
Giesbergeria
Gillisia
Gilvibacter
Gilvimarinus
Glaciecola
Glaciibacter
Globicatella
Gluconacetobacter
Gluconoacetobacter. See: Gluconacetobacter
Gluconobacter
Glycomyces
Goodfellowia
Goodfellowiella
Gordona. See: Gordonia
Gordonia
Gordonibacter
Gracilibacillus
Gracilibacter
Gracilimonas
Grahamella
Gramella
Granulibacter
Granulicatella
Granulicoccus
Granulosicoccus
Grimontia
Guggenheimella
Gulbenkiania
Gulosibacter

Haematobacter
Haemobartonella
Haemophilus
Hafnia
Hahella
Halalkalibacillus
Halanaerobacter
Halanaerobaculum
Halanaerobium
Haliangium
Haliea
Haliscomenobacter
Hallella
Haloactinospora
Haloanaerobacter. See: Halanaerobacter
Haloanaerobium. See: Halanaerobium
Halobacillus
Halobacteroides
Halocella
Halochromatium
Haloferula
Haloglycomyces
Haloincola
Halolactibacillus
Halomonas
Halonatronum
Haloplasma
Halorhodospira
Halospina
Halospirulina
Halotalea
Halothermothrix
Halothiobacillus
Halovibrio
Hamadaea
Helcobacillus
Helcococcus
Heliobacillus
Helicobacter
Heliobacterium
Heliophilum
Heliorestis
Heliothrix
Hellea
Henriciella
Herbaspirillum
Herbidospora
Herminiimonas
Herpetosiphon
Hespellia
Hippea
Hirschia
Histophilus
Hoeflea
Holdemania
Hollandina
Holophaga
Holospora
Hongia
Hongiella
Howardella
Hoyosella
Humibacillus
Humibacter
Humicoccus
Humihabitans
Hyalangium
Hydrocarboniphaga
Hydrogenimonas
Hydrogenivirga
Hydrogenoanaerobacterium
Hydrogenobacter
Hydrogenobaculum
Hydrogenophaga
Hydrogenophilus
Hydrogenothermus
Hydrogenovibrio
Hylemonella
Hymenobacter
Hyphomicrobium
Hyphomonas
Hyunsoonleella

Iamia
Ideonella
Idiomarina
Ignatzschineria
Ignavigranum
Ilumatobacter
Ilyobacter
Inhella
Inquilinus
Insolitispirillum
Intrasporangium
Iodobacter
Isobaculum
Isochromatium
Isoptericola
Isosphaera

Jahnella
Janibacter
Jannaschia
Janthinobacterium
Jejuia
Jeotgalibacillus
Jeotgalicoccus
Jiangella
Johnsonella
Jonesia
Jonquetella
Joostella

Kaistella
Kaistia
Kangiella
Kerstersia
Ketogulonicigenium
Ketogulonigenium. See: Ketogulonicigenium
Kibdelosporangium
Kiloniella
Kineococcus
Kineosphaera
Kineosporia
Kingella
Kitasatoa
Kitasatospora
Kitasatosporia. See: Kitasatospora
Klebsiella
Klugiella
Kluyvera
Knoellia
Kocuria
Kofleria
Kordia
Kordiimonas
Koserella
Kosmotoga
Kozakia
Krasilnikovia
Kribbella
Kribbia
Kriegella
Krokinobacter
Ktedonobacter
Kurthia
Kushneria
Kutzneria
Kytococcus

Labedella
Labrenzia
Labrys
Laceyella
Lachnobacterium
Lachnospira
Lacibacter
Lacinutrix
Lacticigenium
Lactobacillus
Lactococcus
Lactonifactor
Lactosphaera
Lactovum
Lamprobacter
Lamprocystis
Lampropedia
Lapillicoccus
Laribacter
Larkinella
Lautropia
Lawsonia
Leadbetterella
Lebetimonas
Lechevalieria
Leclercia
Leeia
Leeuwenhoekiella
Legionella
Leifsonia
Leisingera
Leminorella
Lentibacillus
Lentisphaera
Lentzea
Leptobacterium
Leptolinea
Leptonema
Leptospira
Leptospirillum
Leptothrix
Leptotrichia
Leucobacter
Leuconostoc
Leucothrix
Levilinea
Levinea
Lewinella
Limibacter
Limnobacter
Limnothrix (not validly published)
Lishizhenia
Listeria
Listonella
Litoricola
Loktanella
Lonepinella
Longilinea
Longispora
Lucibacterium
Luedemannella
Lutaonella
Luteibacter
Luteimonas
Luteococcus
Luteolibacter
Lutibacter
Lutimaribacter
Lutimonas
Lutispora
Lysinibacillus
Lysobacter
Lyticum

Macrococcus
Macromonas
Magnetospirillum
Mahella
Malikia
Malonomonas
Mangrovibacter
Mannheimia
Maribacter
Maribaculum
Maribius
Maricaulis
Marichromatium
Marihabitans
Marinactinospora
Marinibacillus
Marinicola
Marinifilum
Mariniflexile
Marinilabilia
Marinilactibacillus
Marinimicrobium
Marinithermus
Marinitoga
Marinobacter
Marinobacterium
Marinococcus
Marinomonas
Marinoscillum
Marinospirillum
Marinovum
Marispirillum
Maritalea
Maritimibacter
Maritimimonas
Marivita
Marixanthomonas
Marmoricola
Martelella
Marvinbryantia
Massilia
Mechercharimyces
Megamonas
Meganema
Megasphaera
Meiothermus
Melisococcus. See: Melissococcus
Melissococcus
Melitea
Melittangium
Meniscus
Meridianimaribacter
Mesoflavibacter
Mesonia
Mesophilobacter
Mesoplasma
Mesorhizobium
Metascardovia
Methylarcula
Methylibium
Methylobacillus
Methylobacter
Methylobacterium
Methylocaldum
Methylocapsa
Methylocella
Methylococcus
Methylocystis
Methylohalobius
Methylohalomonas
Methylonatrum
Methylomicrobium
Methylomonas
Methylophaga
Methylophilus
Methylopila
Methylorhabdus
Methylosarcina
Methylosinus
Methylosoma
Methylosphaera
Methylotenera
Methylothermus
Methyloversatilis
Methylovirgula
Methylovorus
Micavibrio
Microbacterium
Microbispora
Microbulbifer
Microcella
Micrococcus
Microcyclus
Microcystis (not validly published)
Microellobosporia
Microlunatus
Micromonas
Micromonospora
Micropolyspora
Micropruina
Microscilla
Microsphaera
Microterricola
Microtetraspora
Microvirga
Microvirgula
Millisia
Mitsuaria
Mitsuokella
Mobiluncus
Modestobacter
Modicisalibacter
Moellerella
Mogibacterium
Moorella
Moraxella
....Moraxella (subgen. Branhamella)
....Moraxella (subgen. Moraxella)
Morganella
Moritella
Morococcus
Moryella
Mucilaginibacter
Mucispirillum
Muricauda
Muricoccus
Myceligenerans
Mycetocola
Mycobacterium
Mycoplana
Mycoplasma
Myroides
Myxococcus

Nakamurella
Nannocystis
Natranaerobius
Natroniella
Natronincola
Natronobacillus
Natronocella
Natronoincola. See: Natronincola
Natronovirga
Nautella
Nautilia
Naxibacter
Neisseria
Neoasaia
Neochlamydia
Neorickettsia
Neptuniibacter
Neptunomonas
Nereida
Nesiotobacter
Nesterenkonia
Nevskia
Niabella
Niastella
Nicoletella
Nisaea
Nitratifractor
Nitratireductor
Nitratiruptor
Nitriliruptor
Nitrincola
Nitrobacter
Nitrococcus
Nitrosococcus
Nitrosolobus
Nitrosomonas
Nitrosospira
Nitrospina
Nitrospira
Nocardia
Nocardioides
Nocardiopsis
Nonlabens
Nonomuraea
Nonomuria. See: Nonomuraea
Nosocomiicoccus
Novispirillum
Novosphingobium
Nubsella

Obesumbacterium
Oceanibaculum
Oceanibulbus
Oceanicaulis
Oceanicola
Oceanimonas
Oceaniserpentilla
Oceanisphaera
Oceanithermus
Oceanobacillus
Oceanobacter
Oceanomonas. See: Oceanimonas
Oceanospirillum
Ochrobactrum
Octadecabacter
Odoribacter
Oenococcus
Oerskovia
Okibacterium
Oleiphilus
Oleispira
Oligella
Oligotropha
Olivibacter
Olleya
Olsenella
Opitutus
Orenia
Oribacterium
Oribaculum
Orientia
Ornithinibacillus
Ornithinicoccus
Ornithinimicrobium
Ornithobacterium
Oryzihumus
Oscillibacter
Oscillochloris
Oscillospira
Ottowia
Owenweeksia
Oxalicibacterium
Oxalobacter
Oxalophagus
Oxobacter

Paenibacillus
Paenisporosarcina
Palleronia
Paludibacter
Paludibacterium
Pandoraea
Pannonibacter
Pantoea
Papillibacter
Parabacteroides
Parachlamydia
Paracoccus
Paracraurococcus
Paraeggerthella
Paraferrimonas
Paralactobacillus
Paraliobacillus
Paramoritella
Paraoerskovia
Parapedobacter
Paraprevotella
Parascardovia
Parasegetibacter
Parasporobacterium
Parasutterella
Parvibaculum
Parvimonas
Parvularcula
Pasteurella
Pasteuria
Patulibacter
Paucibacter
Paucimonas
Paucisalibacillus
Pectinatus
Pectobacterium
Pediococcus
Pedobacter
Pedomicrobium
Pelagibaca
Pelagibacillus
Pelagibius
Pelagicoccus
Pelagicola
Pelczaria (rejected name)
Pelistega
Pelobacter
Pelodictyon
Pelomonas
Pelosinus
Pelospora
Pelotomaculum
Peptococcus
Peptoniphilus
Peptostreptococcus
Peredibacter
Perexilibacter
Perlucidibaca
Persephonella
Persicirhabdus
Persicitalea
Persicivirga
Persicobacter
Petrimonas
Petrobacter
Petrotoga
Pfennigia
Phaeobacter
Phaeospirillum
Phascolarctobacterium
Phaselicystis
Phenylobacterium
Phocaeicola
Phocoenobacter
Photobacterium
Photorhabdus
Phycicoccus
Phycicola
Phycisphaera
Phyllobacterium
Pibocella
Pigmentiphaga
Pilibacter
Pilimelia
Pillotina
Pimelobacter
Pirella
Pirellula
Piscibacillus
Piscinibacter
Piscirickettsia
Planctomyces
Planifilum
Planktothricoides
Planktothrix (not validly published)
Planobacterium
Planobispora
Planococcus
Planomicrobium
Planomonospora
Planopolyspora
Planosporangium
Planotetraspora
Plantactinospora
Plantibacter
Pleomorphomonas
Pleisomonas. See: Plesiomonas
Plesiocystis
Plesiomonas
Polaribacter
Polaromonas
Polyangium
Polymorphospora
Polynucleobacter
Pontibacillus
Pontibacter
Ponticaulis
Ponticoccus
Porphyrobacter
Porphyromonas
Pragia
Prauserella
Prevotella
Prochlorococcus
Prochloron
Prochlorothrix
Prolinoborus
Prolixibacter
Promicromonospora
Propionibacter
Propionibacterium
Propionicicella
Propionicimonas
Propioniferax
Propionigenium
Propionimicrobium
Propionispira
Propionispora
Propionivibrio
Prosthecobacter
Prosthecochloris
Prosthecomicrobium
Proteiniborus
Proteiniphilum
Proteocatella
Proteus
Protomonas
Providencia
Pseudacidovorax
Pseudaminobacter
Pseudidiomarina
Pseudoalteromonas
Pseudoamycolata
Pseudobutyrivibrio
Pseudocaedibacter
Pseudochrobactrum
Pseudoclavibacter
Pseudogulbenkiania
Pseudolabrys
Pseudomonas
Pseudonocardia
Pseudoramibacter
Pseudorhodobacter
Pseudorhodoferax
Pseudoruegeria
Pseudosphingobacterium
Pseudospirillum
Pseudosporangium
Pseudovibrio
Pseudoxanthobacter
Pseudoxanthomonas
Pseudozobellia
Psychrilyobacter
Psychrobacter
Psychroflexus
Psychromonas
Psychroserpens
Pullulanibacillus
Puniceicoccus
Pusillimonas
Pyramidobacter
Pyxidicoccus

Quadricoccus
Quadrisphaera
Quatrionicoccus
Quinella

Rahnella
Ralstonia
Ramlibacter
Raoultella
Rapidithrix
Rarobacter
Rathayibacter
Reichenbachia
Reichenbachiella
Reinekea
Renibacterium
Rhabdochromatium
Rheinheimera
Rhizobacter
Rhizobium
Rhizomonas
Rhodanobacter
Rhodobaca
Rhodobacter
Rhodobium
Rhodoblastus
Rhodocista
Rhodococcus
Rhodocyclus
Rhodoferax
Rhodoglobus
Rhodomicrobium
Rhodonellum
Rhodopila
Rhodopirellula
Rhodoplanes
Rhodopseudomonas
Rhodospira
Rhodospirillum
Rhodothalassium
Rhodothermus
Rhodovarius
Rhodovibrio
Rhodovulum
Rickettsia
Rickettsiella
Riemerella
Rikenella
Rivibacter
Robiginitalea
Robiginitomaculum
Robinsoniella
Rochalimaea
Roseateles
Roseburia
Roseibaca
Roseibacillus
Roseibacterium
Roseibium
Roseicyclus
Roseiflexus
Roseinatronobacter
Roseisalinus
Roseivirga
Roseivivax
Roseobacter
Roseococcus
Roseomonas
Roseospira
Roseospirillum
Roseovarius
Rothia
Ruania
Rubellimicrobium
Rubidibacter
Rubrimonas
Rubritalea
Rubritepida
Rubrivivax
Rubrobacter
Rudaea
Rudanella
Ruegeria
Rugamonas
Rugosimonospora
Ruminobacter
Ruminococcus
Rummeliibacillus
Runella

Saccharibacillus
Saccharibacter
Saccharobacter
Saccharococcus
Saccharomonospora
Saccharophagus
Saccharopolyspora
Saccharospirillum
Saccharothrix
Sagittula
Salana
Salegentibacter
Salibacillus
Salicola
Salimicrobium
Salinarimonas
Salinibacillus
Salinibacter
Salinibacterium
Salinicoccus
Salinicola
Salinihabitans
Salinimicrobium
Salinimonas
Salinisphaera
Salinispora
Salinivibrio
Salipiger
Salirhabdus
Salisaeta
Salmonella
Salsuginibacillus
Samsonia
Sandaracinobacter
Sandarakinorhabdus
Sandarakinotalea
Sanguibacter
Saprospira
Sarcina
Sarcobium
Saxeibacter
Scardovia
Schineria
Schlegelella
Schlesneria
Schumannella
Schwartzia
Sciscionella
Sebaldella
Sedimentibacter
Sedimenticola
Sediminibacillus
Sediminibacter
Sediminibacterium
Sediminicola
Sediminimonas
Sediminitomix
Segetibacter
Segniliparus
Seinonella
Sejongia
Selenihalanaerobacter
Selenomonas
Seliberia
Seohaeicola
Serinibacter
Serinicoccus
Serpens
Serpula
Serpulina
Serratia
Sharpea
Shewanella
Shigella
Shimazuella
Shimia
Shinella
Shuttleworthia
Silanimonas
Silicibacter
Silvimonas
Simiduia
Simkania
Simonsiella
Simplicispira
Singularimonas
Singulisphaera
Sinobaca
Sinobacter
Sinococcus
Sinomonas
Sinorhizobium
Skermanella
Skermania
Slackia
Smaragdicoccus
Smithella
Sneathia
Sneathiella
Sodalis
Soehngenia
Solibacillus
Solimonas
Solirubrobacter
Solitalea
Solobacterium
Sorangium
Sphaerisporangium
Sphaerobacter
Sphaerotilus
Sphingobacterium
Sphingobium
Sphingomonas
Sphingopyxis
Sphingosinicella
Spirilliplanes
Spirillospora
Spirillum
Spirochaeta
Spiroplasma
Spirosoma
Spongiibacter
Spongiispira
Sporacetigenium
Sporanaerobacter
Sporichthya
Sporobacter
Sporobacterium
Sporocytophaga
Sporohalobacter
Sporolactobacillus
Sporolituus
Sporomusa
Sporosarcina
Sporotalea
Sporotomaculum
Stackebrandtia
Staleya
Stanierella
Staphylococcus
Stappia
Starkeya
Stella
Stenothermobacter
Stenotrophomonas
Stenoxybacter
Steroidobacter
Sterolibacterium
Stibiobacter
Stigmatella
Stomatococcus
Streptacidiphilus
Streptimonospora. See: Streptomonospora
Streptoalloteichus
Streptobacillus
Streptococcus
Streptomonospora
Streptomyces: S.abikoensis-S.exfoliatus - S.felleus-S.mutomycini - S.naganishii-S. zaomyceticus
Streptosporangium
Streptoverticillium
Subdoligranulum
Subsaxibacter
Subsaximicrobium
Subtercola
Succiniclasticum
Succinimonas
Succinispira
Succinivibrio
Sulfitobacter
Sulfobacillus
Sulfuricurvum
Sulfurihydrogenibium
Sulfurimonas
Sulfurivirga
Sulfurospirillum
Sulfurovum
Sutterella
Suttonella
Swaminathania
Symbiobacterium
Symbiotes
Synergistes
Syntrophobacter
Syntrophobotulus
Syntrophococcus
Syntrophomonas
Syntrophorhabdus
Syntrophospora
Syntrophothermus
Syntrophus

Tamlana
Tannerella
Tanticharoenia
Tateyamaria
Tatlockia
Tatumella
Taylorella
Tectibacter
Teichococcus
Telluria
Telmatospirillum
Tenacibaculum
Tenuibacillus
Tepidanaerobacter
Tepidibacter
Tepidicella
Tepidimicrobium
Tepidimonas
Tepidiphilus
Terasakiella
Teredinibacter
Terrabacter
Terracoccus
Terribacillus
Terriglobus
Terrimonas
Tessaracoccus
Tetragenococcus
Tetrasphaera
Tetrathiobacter
Thalassobaculum
Thalassobacillus
Thalassobacter
Thalassobius
Thalassococcus
Thalassolituus
Thalassomonas
Thalassospira
Thauera
Thermacetogenium
Thermaerobacter
Thermanaeromonas
Thermanaerovibrio
Thermicanus
Thermincola
Thermithiobacillus
Thermoactinomyces
Thermoanaerobacter
Thermoanaerobacterium
Thermoanaerobium
Thermobacillus
Thermobacteroides
Thermobifida
Thermobispora
Thermobrachium
Thermochromatium
Thermocrinis
Thermocrispum
Thermodesulfatator
Thermodesulfobacterium
Thermodesulfobium
Thermodesulforhabdus
Thermodesulfovibrio
Thermoflavimicrobium
Thermohalobacter
Thermohydrogenium
Thermoleophilum
Thermolithobacter
Thermomicrobium
Thermomonas
Thermomonospora
Thermonema
Thermopolyspora
Thermosediminibacter
Thermosinus
Thermosipho
Thermosulfidibacter
Thermosyntropha
Thermotalea
Thermoterrabacterium
Thermothrix
Thermotoga
Thermovenabulum
Thermovibrio
Thermovirga
Thermus
Thioalkalibacter
Thialkalicoccus. See: Thioalkalicoccus
Thialkalimicrobium. See: Thioalkalimicrobium
Thialkalivibrio. See: Thioalkalivibrio
Thioalkalicoccus
Thioalkalimicrobium
Thioalkalispira
Thioalkalivibrio
Thiobaca
Thiobacillus
Thiobacter
Thiobacterium
Thiocapsa
Thioclava
Thiococcus
Thiocystis
Thiodictyon
Thiofaba
Thioflavicoccus
Thiohalobacter
Thiohalocapsa
Thiohalomonas
Thiohalophilus
Thiohalorhabdus
Thiohalospira
Thiolamprovum
Thiomargarita
Thiomicrospira
Thiomonas
Thiopedia
Thiophaeococcus
Thioploca
Thioreductor
Thiorhodococcus
Thiorhodospira
Thiorhodovibrio
Thiosphaera
Thiospira
Thiospirillum
Thiothrix
Thiovirga
Thiovulum
Thorsellia
Tindallia
Tissierella
Tistrella
Tolumonas
Toxothrix
Trabulsiella
Tranquillimonas
Treponema
Trichlorobacter
Trichococcus
Tropheryma
Tropicibacter
Tropicimonas
Truepera
Tsukamurella
Tuberibacillus
Turicella
Turicibacter
Tumebacillus
Turneriella
Tychonema (not validly published)

Uliginosibacterium
Ulvibacter
Umezawaea
Undibacterium
Ureaplasma
Ureibacillus
Uruburuella

Vagococcus
Vampirovibrio
Varibaculum
Variovorax
Veillonella
Venenivibrio
Verminephrobacter
Verrucomicrobium
Verrucosispora
Vibrio
Victivallis
Virgibacillus
Virgisporangium
Virgosporangium. See: Virgisporangium
Viridibacillus
Vitellibacter
Vitreoscilla
Vogesella
Volcaniella
Volucribacter
Vulcanibacillus
Vulcanithermus

Waddlia
Wautersia
Wautersiella
Weeksella
Weissella
Wenxinia
Wigglesworthia
Williamsia
Winogradskyella
Wohlfahrtiimonas
Wolbachia
Wolinella
Woodsholea

Xanthobacter
Xanthomonas
Xenophilus
Xenorhabdus
Xylanibacter
Xylanibacterium
Xylanimicrobium
Xylanimonas
Xylella
Xylophilus

Yangia
Yania
Yaniella
Yeosuana
Yersinia
Yokenella
Yonghaparkia

Zavarzinella
Zavarzinia
Zeaxanthinibacter
Zhangella
Zhihengliuella
Zhouia
Zimmermannella
Zobellella
Zobellia
Zoogloea
Zooshikella
Zunongwangia
Zymobacter
Zymomonas
Zymophilus