Table 2.

Chlamydiales pathogenic to fish (Draghi et al. 2004, 2007; Meijer et al. 2006; Karlsen et al. 2008; Polkinghorne et al. 2010; Corsaro and Work 2012; Kumar et al. 2012; Camus et al. 2013; Fehr et al. 2013; Pawlikowska and Deptuła 2013; Stride et al. 2013a, b, c; Steigen et al. 2013, 2015; Nylund et al. 2015)

Family I	Chlamydiaceae
Family II	Parachlamydiaceae
	CRG18
Family III	Simkaniaceae
Species	Candidatus Syngnamydia venezia
Species	Candidatus Syngnamydia salmonis
Family IV	Rhabdochlamydiaceae
Species	Candidatus Renichlamydia lutjani
	CRG20
Family V	Waddliaceae
Family VI	Candidatus Piscichlamydiaceae
Genus	Candidatus Piscichlamydia
Species	Candidatus Piscichlamydia salmonis
Species	Candidatus Piscichlamydia cyprinis
Family VII	Candidatus Clavichlamydiaceae
Genus	Candidatus Clavichlamydia
Species	Candidatus Clavichlamydia salmonicola
Family VIII	Criblamydiaceae
Family IX	Candidatus Actinochlamydiaceae
Species	Candidatus Actinochlamydia clariae
Family X	Candidatus Parilichlamydiaceae
Species	Candidatus Parilichlamydia carangidicola
Species	Candidatus Similichlamydia latridicola
Species	Candidatus Similichlamydia laticola
Species	Candidatus Similichlamydia labri
Family incerta sedis	UFC1
	UGA1
	WB13
	WB258
	CRG98