Treponema refringens Dataset NCBI Taxonomy Rank SPECIES Classification phylum Spirochaetota class Spirochaetia order Spirochaetales family Treponemataceae genus Treponema species Treponema refringens Name Synonyms "Treponema refringens" (Schaudinn and Hofmann 1905) Castellani and Chalmers Homonyms Treponema refringens "Treponema refringens" (Schaudinn and Hofmann 1905) Castellani and Chalmers