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Fig. 1 | Zoological Letters

Fig. 1

From: Modification of pectoral fins occurs during the larva-to-juvenile transition in the mudskipper (Periophthalmus modestus)

Fig. 1

Collection of samples and the pectoral fin of an adult mudskipper Ps. modestus. a The adult mudskipper (Periophthalmus modestus). b The egg chamber and surrounding mud was excavated, transferred to a humid container, and brought back to the laboratory. The open container was set adrift in an aerated aquarium kept within an incubator. cg Skeletal patterns of an adult mudskipper (n = 1). c Lateral view of the pectoral fin of an adult mudskipper. Arrowheads indicate inter-radial fenestrae. d Ventral view of the medial part of the pectoral fin. e, f Ventral (e) and dorsal (f) views of the thoracic region of an adult mudskipper. g Ventral view of the proximal part of the pectoral fin. The fourth proximal radial partially articulates with the coracoid (arrowheads). cl, cleithrum; clp, cleithrum plate; co, coracoid; dr1–14, distal radials 1 to 14; e, eye; g, gill; pec. fr. 1–14, pectoral fin rays 1 to 14; pel. fr. 1–6, pelvic fin rays 1 to 6; post. t., posttemporal; pvb, pelvic bone; pr1–4, proximal radials 1 to 4; pvd, pelvic dome; sk, skull; sup. cl., supracleithrum. Scale bars, 1 mm

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