Fig. 3
From: Morphological evolution and diversity of pectoral fin skeletons in teleosts
Pectoral fin skeletons of Otomorpha. A–C Dorsal (medial) view of pectoral fin skeleton of Sardinops melanostictus (11 cm TL) focused on girdle components (B) and extremity components (C). D–F Dorsal (medial) view of pectoral fin skeleton of Engraulis japonicus (11 cm TL), focused on girdle components (E) and extremity components (F). G–I Dorsal (medial) view of pectoral fin skeleton of Tribolodon hakonensis (22 cm TL), focused on girdle components (H) and extremity components (I). Arrowhead and asterisk indicate a tiny piece of DR-like cartilage and a large cartilaginous part, respectively. White numbers indicate distal radials. Cl, cleithrum; Co, coracoid; FR, fin ray; Mco, mesocoracoid; PR, proximal radial; Sc, scapula. Scale bars: 2 mm (G); 1 mm (A, B, H, I); 500 µm (C–F)