Figure 13 in Mastiglanis durantoni from French Guyana, a second species in the genus (Siluriformes: Heptapteridae), with a CT scan survey of phylogenetically-relevant characters

Figure 13. – CT scan image of posterior portion of skull and anterior part of vertebral column of Mastiglanis durantoni, MZUSP 118118, paratype, ventral view. Anterior to top. Abbreviations: bo, basioccipital; ex, exoccipital; fr, frontal; pa, parasphenoid; par, parapophysis; plr, pleural rib; pro, prootic; pt, pterotic; ptr, pterosphenoid; pts, posttemporo-supracleithrum; sph, sphenotic; tp4a, anterior ramus of transverse process of vertebra 4; tp4p, posterior ramus of transverse process of vertebra 4; tp5, transverse process of vertebra 5; tr, tripus; trs, transscapular process; vc5-7, vertebral centra 5 to 7.