"Spirillum pallidum" (Schaudinn and Hoffmann 1905) Mace 1913 Dataset NCBI Taxonomy Classification phylum Spirochaetota class Spirochaetia order Spirochaetales family Treponemataceae genus Treponema species Treponema pallidum Name Homonyms Spirillum pallidum "Spirillum pallidum" (Schaudinn and Hoffmann 1905) Mace 1913