Freshwater shark
Freshwater shark is the slang term for various taxa of sharks or other fish that live, can live, or have lived in freshwater .
Can be meant:
- Bull shark , a large species of shark that lives in fresh and salt water
- River sharks , a genus of sharks whose members prefer to live in the fresh and brackish water of large rivers
- some species of catfish traded as "freshwater sharks" among aquarists
- Xenacanthiformes , extinct shark-like cartilaginous fish of the Upper Palaeozoic