Figs 18-25 in The scolopendromorph centipedes (Chilopoda, Scolopendromorpha) of Tunisia: taxonomy, distribution and habitats

Figs 18-25. Otostigmus spinicaudus: 18 – head plate; 19 – forcipular coxosternum and forcipules; 20 – coxopleural process, lateral view; 21 – spiracle; 22-23 – prefemur of ultimate legs (specimen from Chambi): left leg, ventromesal view; right leg, mesal views, respectively; 24-25 – prefemora of ultimate legs (specimen from Matmata), ventral and dorsal views, respectively.