FIGURE 6 in Carinobolus gen. nov. and Costabolus gen. nov., two new, remarkably crested monospecific genera of spirobolidan millipedes from WestAfrica, with the proposal of a new tribe, Amblybolini tribus nova (Diplopoda, Spirobolida, Pachybolidae)

FIGURE 6. Costabolus baculus sp. nov., male paratype (VNHM 198). A. Anterior part of body, ventral view. B. Coxal projections on leg-pairs 2 and 3. C. Leg-pair 2, posterior view. D. Leg-pair 3, posterior view. E-I. Everted gonopod block, anterior, ventrolateral, ventral, posterior and posterolateral views, respectively. J. Right posterior gonopod, lateral view. K. Drawing of left posterior gonopod, caudal view. Abbreviations: 1, median membranous area of telopodite; 2, lateral sclerotized area of telopodite; cx1, coxite of anterior gonopod; cx2, coxite of posterior gonopod; pg, posterior gonopod; hp, basal projection of prefemur 2; st, sternite; sl, solenomere; t1 and t2, telopoditomeres 1 and 2 of anterior gonopod; tl, telopodite of posterior gonopod. Scale bars: 500 µm (A, C), 100 µm (B), 200 µm (D, E–K).