FIGURE 4 in Anatomy, ecology, and behavior of a new species of Scleronema Eigenmann, 1917 (Siluriformes: Trichomycteridae) from coastal drainages in the southern Brazilian Atlantic Rainforest, with comments on the monophyly and phylogeny of the genus

FIGURE 4. Tridimensional model of the skull, Weberian capsule, and right premaxilla-maxilla-autopalatine complex of Scleronema carijo, new species, LIRP 16930, 37.2 mm SL, holotype. A. dorsal view; B. left lateral view; C. ventral view. Shaded region on the left edge of the skull in dorsal view (A) represents the course of the supraorbital, otic, and postotic laterosensory canals. Abbreviations: acf = anterior cranial fontanel; ao = antorbital; ap = autopalatine; bo+ex = complex bone formed by basioccipital plus exoccipital; eb = epiphyseal bar; eo = epioccipital; fr = frontal; le = lateral ethmoid; llo = lateral line ossicle; me = mesethmoid; mx = maxilla; of = orbital foramen; os = orbitosphenoid; pa = parasphenoid; pcf = posterior cranial fontanel; pmx = premaxilla; pt = pterotic; pte-sc = posttemporo-supracleithrum; sp+po+ps = complex bone formed by sphenotic, prootic, and pterosphenoid; ss = sesamoid supraorbital (= barbular of de Pinna et al., 2020); su = supraoccipital; tff = trigeminofacial foramen; vo = vomer; wc = Weberian capsule. Scale bar = 1 mm.