Bacillidesmus filiformis (Latzel, 1884), type material A paralectotype ♀ (NHMW MY10266), habitus, lateral view B lectotype ♂ (NHMW MY3754) body rings 8–19, dorsal view C lectotype ♂ (NHMW MY3754) head and body rings 1–6, dorsal view D paralectotype ♀ (NHMW MY10266) left leg 4, posterior view E lectotype ♂ (NHMW MY3754) right leg 4, anterior view F lectotype ♂ (NHMW MY3754) right leg 10, posterior view G lectotype ♂ (NHMW MY3754) gonopod, mesal or lateral view. Abbreviations: s solenomere, sph solenophore. Scale bars: 0.5 mm (A–C), 0.1 mm (D–F), 0.05 mm (G).