FIGURE 2 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 2. Carinobolus complex sp. nov., male paratype (RMCA). A & B. Head, frontal and lateral views, respectively. C. Tip of antenna, sublateral view. D. Gnathochilarium, ventral view. E, F & G. Right mandible, submesal, mesal and subfrontal views, respectively. H. Anterior part of body, lateral view. I. Midbody rings with ozopores (oz), lateral view. J. A midbody metazona showing bimodal crests. K & L. Posterior part of body, lateral and ventral views, respectively. M. Cross-section of midbody ring, frontal view. N. Details of a midbody ring, lateral view. O. Limbus of a midbody ring, lateral view. Abbreviations: et, external tooth; it, internal teeth; lt, lateral tooth; mp, molar plate; oz, ozopore; pl, pectinate lamella. Scale bars: 500 µm (A, I, K, L, M), 200 µm (B, D, H, J), 100 µm (C, E, F, G, N), 10 µm (O).