Treponema pertenue (Castellani 1905) Castellani and Chalmers 1910 emend. Smibert 1974 (Approved Lists 1980) Treponema pallidum pertenue (Castellani 1905) Smibert 1984 Cejková D. Zobaníková M. Pospísilová P. Strouhal M. Mikalová L. Weinstock G.M. Smajs D. Structure of rrn operons in pathogenic non-cultivable treponemes: sequence but not genomic position of intergenic spacers correlates with classification of Treponema pallidum and Treponema paraluiscuniculi strains 2013 62 2 196 207 Journal of Medical Microbiology J Med Microbiol 0022-2615 1473-5644 10.1099/jmm.0.050658-0 23082031