Figure 5
From: Hearing capacities and morphology of the auditory system in Serrasalmidae (Teleostei: Otophysi)
Three-dimensional reconstruction of the neurocranium, the swimbladder, otoliths and Weberian ossicles in Pygocentrus nattereri and Piaractus brachypomus. (a) Left lateral, (b) dorsal and (c) ventral views of the reconstructed anterior part of Py. nattereri. (d) Left lateral, (e) dorsal and (f) ventral views of the reconstructed anterior part of Pi. brachypomus. The 3D reconstructions are based on µCT scans. Note that the interossicular ligaments between the Weberian ossicles are visible on the reconstructions of Pi. brachypomus. Lapillus (blue), sagitta (yellow), asteriscus (fuchsia), tripus (red), intercalarium (green), scaphium (orange) and claustrum (sky blue). NC, neurocranium; SWBa, anterior part of the swimbladder; SWBp, posterior part of the swimbladder. Scale data: neurocranium length is 32 mm and 37.7 mm in Py. nattereri and Pi. brachypomus, respectively.
