f9b025a336845cd617c51352956e1c8d_f10746 – Discover Fishes https://www.floridamuseum.ufl.edu/discover-fish/teaching-resources/shark-dissection/f9b025a336845cd617c51352956e1c8d_f10746/
Close up: nidamental gland.
Fishes in the Fresh Waters of Florida Gallery Fish