Figure 3 | Scientific Reports

Figure 3

From: Development of zebrafish paired and median fin musculature: basis for comparative, developmental, and macroevolutionary studies

Figure 3

Development of the deep dorsal caudal fin muscles in the zebrafish. At 4.6 mm NL, ventral caudal muscles grow towards the caudal fin rays are present. (a) By 5.0 mm SL, ventral caudal muscles reach the caudal fin rays (b) and development of the deep dorsal fin muscles starts (c,d). The flexor caudalis dorsalis inferioris can be seen at 5.2 mm SL (c) and the flexor caudalis dorsalis superioris appears at 5.5 mm SL (d). Note: different colors in (c) do not mean different staining, but were used to contrast the flexor caudalis dorsalis inferioris and the dorsal caudal muscle lodging in different layers. The ventral caudal muscle is still attached to the dorsal caudal fin rays and the flexor caudalis ventralis splits into the superior and inferior portions (d). Hypurals and parhypural are outlined with the white dashed line (PH – parhypural, H1 – hypural 1, H2 – hypural 2, H3 – hypural 3, H4 – hypural 4, H5 – hypural 5).

Back to article page