Figure 5 in Ontogeny of the jaw and maxillary barbel musculature in the armoured catfish families Loricariidae and Callichthyidae (Loricarioidea, Siluriformes), with a discussion on muscle homologies

Figure 5. Cross-sections of embryonic Ancistrus cf. triradiatus. Only the right half of each section is shown (only adductor mandibulae complex in E). A, at lower jaw; B, at posterior side of hyoid bar (A, B: 8.0-mm SL); C, at lower jaw; D, at anterior side of hyoid bar (C, D: 12.4-mm SL); E, at anterior side of hyoid bar (10.2-mm SL) (black indicates bone, dark grey indicates cartilage, light grey indicates muscle, stippled areas indicate nerves). Scale bar = 0.5 mm.