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Figure 5 | EvoDevo

Figure 5

From: Comparative developmental osteology of the seahorse skeleton reveals heterochrony amongst Hippocampus sp. and progressive caudal fin loss

Figure 5

The caudal fin in Hippocampus reidi and H. subelongatus . A-B) whole mount staining showing the cartilage nodule (arrows) in H. reidi (A-C) and H. subelongatus (D, E). A) 5 dpp, B) 27 dpp, C) 35 dpp, D) 4 dpp, E) 8 dpp. F-J) transverse serial sections at the rostral border of the caudal cartilage of H. reidi at 1 dpp showing cartilage (arrow) extending beyond the end of the notochord (asterisk). In I-J, two hemitrichs of the caudal fin rays (arrowhead) can be seen. Histological sections are stained with toluidine blue. Scale bar in A is 100 µm and in C is 50 µm. Scale bars in B, and D-E are 150 µm, and F-I are 20 µm.

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ISSN: 2041-9139