Fig. 6

Skeletal patterns of pectoral fins of juveniles. a–c Hematoxylin- and eosin-stained pectoral fins of 14.5 mm TL planktonic larvae (n = 1). b, c Magnified figures indicated in (a). d, e Lateral (d) and ventral (e) views of skeletal patterns of pectoral fins of 18.6 mm TL benthic juveniles (n = 1). f–i Hematoxylin- and eosin-stained pectoral fins of 19.9 mm TL amphibious juveniles (n = 1). g, h, i Magnified figures indicated in (f). j, k Lateral (j) and ventral (k) views of skeletal patterns of pectoral fins of 22.5 mm TL amphibious juveniles (n = 1). cl, cleithrum; co, coracoid; fr, fin ray; mdz, zone of matrix decomposition; pel, pelvic bone; pt., posttemporal; pr, proximal radial; scl, supracleithrum; sco, scapulocoracoid. Scale bars, 10 μm in (a–c, g–i); 50 μm in (f); 400 μm in (d–e, j–k)