Fig. 2 in The brain of Brycon orbignyanus (Valenciennes, 1850) (Teleostei: Characiformes: Bryconidae): gross morphology and phylogenetic considerations

Fig. 2. Brain of Brycon orbignyanus (Characiformes: Bryconidae), LIRP 6309, 175.5 mm SL. a. dorsal; b. lateral and c. ventral views. Apt = Area postrema; Bol = bulbus olfactorius; Ch = chiasma opticum; Cocb = corpus cerebelli; Dien = diencephalon; Eg = eminentia granularis; Hyp = hypophysis; Hyt = hypothalamus; Lih = lobus inferior hypothalami; LobX = lobus vagi; Mo = medulla oblongata; Ms = medulla spinalis; Pob = nervus tractus olfactorius; Sv = saccus vasculosus; Tect = tectum opticum;; Telen = Telencephalon Tl = Torus lateralis; Tv = tela ventriculi; Cranial Nerves: nI = nervus olfactorius; nII = nervus opticus; nIII = nervus oculomotorius; nIV = nervus trochlearis; nV = nervus trigeminus; nVI = nervus abducens; nVII = nervus fascialis; nVIII = nervus octavus; nLLa = nervus lineae lateralis anterior; nLLp = nervus lineae lateralis posterior; nIX = nervus glossopharyngeus; nX = nervus vagus and; nSo = nervus spino-occipitales.