The notochord is persistent throughout life in which of the following?
Notochord is persistent throughout life in Carcharadon (Chondrichthyes - Cartilaginous fishes).
Exocoetus (Flying fish), Hippocampus (Sea horse), Clarias (Magur) are the examples of class Osteichthyes (Bony fishes). In these, the notochord is found in embryonic stage only.