Figure 4 in Osteology of the South Asian Genus Psilorhynchus McClelland, 1839 (Teleostei: Ostariophysi: Psilorhynchidae), with investigation of its phylogenetic relationships within the order Cypriniformes

Figure 4. Serial sections through the head of Psilorhynchus. A, transverse section through the masticatory plate of Psilorhynchus sucatio, KU 40642, male, 48.6-mm standard length (SL). B, transverse section through the masticatory plate of Psilorhynchus balitora, KU 40375, 36.1-mm SL. C, sagital section through the lateral ethmoid of Psilorhynchus sucatio, KU 40642, 49.8-mm SL, inset image shows close-up of connective tissue between transverse shelf on medial face of infraorbital 2 and the ventral surface of the lateral ethmoid of a more medial section. D, sagital section through the upper jaw and ethmoid region of P. sucatio, KU 40642, 49.8-mm SL, inset image shows close-up of boxed area. E, sagital section through the upper jaw and ethmoid region of P. balitora, KU 40375, 29.9-mm SL, inset image shows close-up of boxed area. Abbreviations: Boc, basioccipital; CT, connective tissue; DA, dorsal aorta; E, esophagus; Ep, epidermis; IE, inner ear; IO2, inner ear; LE, lateral ethmoid; M, meniscus; MaPL, masticatory plate; Mx, maxilla; N, notochord; Pc, perichordal ossification of the basioccipital; PE, preethmoid; PT, pharyngeal teeth of ceratobranchial 5.