Fig. 4 in The brain of Brycon orbignyanus (Valenciennes, 1850) (Teleostei: Characiformes: Bryconidae): gross morphology and phylogenetic considerations

Fig. 4. Brain of Diplomystes mesembrinus (Siluriformes: Diplomystidae), LBP 449, 72.62 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; LobVII = lobus facialis; LobX = lobus vagi; Mo = medulla oblongata; Ms = medulla spinalis; Pob = nervus tractus olfactorius; 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.