Figures 1-6 from: Bouzan RS, Pena-Barbosa JPP, Brescovit AD (2017) Two new Brazilian species of Chelodesmidae of the genera Iguazus and Tessarithys (Diplopoda: Polydesmida). Zoologia 34: 1-8. https://doi.org/10.3897/zoologia.34.e19986

Figures 1-6 (1–3) Iguazus robustus sp. nov., left gonopod: (1) mesal view (arrow = insertion point, zone of acropodite); (2) ventral view; (3) ectal view (arrow = groove near the first portion of the acropodite). (4–6) Tessarithys exacuminatus sp. nov., left gonopod: (4) mesal view; (5) ventral view; (6) ectal view (arrow = groove near the first portion of the acropodite). Scale bars = 0.5 mm. (a) Process A, (A) acropodite, (b) process B, (c) process C, (PfP) prefemoral process, (SP) spiniform projection on gonopod coxae, (X) subterminal dorsal branch.