Green Sawfish – Discover Fishes https://www.floridamuseum.ufl.edu/discover-fish/species-profiles/green-sawfish/
Pristis zijsron Sawfish look a lot like sharks, but they are actually rays. Their unusual snout, or rostrum, is studded with „teeth“ (specialized scales) and is used to stun schooling fish by swinging side to side. The green sawfish is the largest species of sawfish, growing to 24 feet in length.
Hexabothriidae) inhabit the gills of other sawfishes off Darwin, Australia and in Papua New Guinea