Sandalodesmus Silvestri, 1902

Figueiredo, Thiago D., Iniesta, Luiz F. M., Brescovit, Antonio D. & Bouzan, Rodrigo S., 2025, Three new species of Sandalodesmus Silvestri, 1902 from the last intact stretches of Atlantic Forest in Brazil (Polydesmida: Chelodesmidae: Sandalodesmini), Zootaxa 5723 (4), pp. 514-532 : 515

Genus Sandalodesmus Silvestri, 1902

Type species. Sandalodesmus salvadorii ( Silvestri, 1895) , originally described as Odontopeltis salvadorii Silvestri, 1895 ; subsequently designated by Rojas-Buffet et al. 2022: 261.

Diagnosis. (Modified from Rojas-Buffet et al. 2022). Males of Sandalodesmus differ from those of Oncoleptodesmus by the presence of only two dorsal macrosetae on the gonocoxites ( gcx) ( Figs 6C , 9B ) vs. several dorsal macrosetae of Oncoleptodesmus ( Schubart 1958: figs 1–3). By the absence of spinulations on the acropodite process ( ap) vs. the presence of numerous small spinulations along its lateral margin on Oncoleptodesmus ( Schubart 1958: figs 1–3). An exception is Sandalodesmus repandus ( Schubart, 1958) , which exhibits spinulation in this region.

Figures

FIGURE 6. Sexual characters of Sandalodesmus peruibe sp. nov. ♂ holotype (IBSP 401). A. left gonopod, ectal view. B. left gonopod, mesal view. C. left gonopod, ectal view. D. left gonopod, mesal view. Abbreviations: ap: acropodite process; asp: acropodite spiniform process; c: cannula; gcx: gonocoxite; pfp: prefemoral process; s: solenomere. Scale bars: A–D. 2 mm.

FIGURE 9. Sexual characters of Sandalodesmus jureia sp. nov. ♂ (IBSP 1127). A. left gonopod, ectal view. B. right gonopod (mirrored), mesal view. C. close-up of ectal side of the acropodite. D. left gonopod, anteroventral view. Abbreviations: ap: acropodite process; alp: acropodite laminar process; c: cannula; epfp: ectal projection of prefemoral process; mpfp: mesal projection of prefemoral process; pfp: prefemoral process; pfr: prefemoral region; s: solenomere. Scale bars: A, B. 500 μm; C. 50 μm.