Kalmar "Schizomycetes" tsohuwar kalma ce da aka taɓa amfani da ita don kwatanta ƙungiyar ƙwayoyin cuta waɗanda ke haifuwa ta hanyar rarraba tantanin halitta. An daina amfani da kalmar a cikin ilimin ƙwayoyin cuta na zamani, kuma an mayar da ƙungiyar zuwa nau'ikan phyla na ƙwayoyin cuta. -" na nufin "raga" ko "cleave," da "-mycetes" na nufin "naman gwari." Don haka, an yi amfani da kalmar Schizomycetes wajen siffanta ƙwayoyin cuta da ake zaton suna da alaƙa da fungi, kuma waɗanda aka sake haifuwa ta hanyar rarrabuwa zuwa ɗiyan mata biyu.