Kalmar "Family Treponemataceae" tana nufin dangin taxonomic na karkace mai siffa, ƙwayoyin cuta gram-korau na phylum Spirochaetes. Membobin wannan iyali suna da alhakin haifar da cututtuka daban-daban a cikin mutane da dabbobi, ciki har da syphilis, yaws, bejel, da pinta. Iyalin sun hada da kwayar halittar Treponema, wacce ke dauke da nau'ikan kwayoyin cuta da dama, da kuma kwayoyin cuta wadanda ba su da cutar da ake samu a cikin kogon baka da kuma gastrointestinal tract na mutane da dabbobi.