Photo: Mexican Walking Fish Called Ambulatory

Walking fish, sometimes called ambulatory fish, is a general term that refers to fish that are able to travel over land for extended periods of time. The term may also be used for some other cases of nonstandard fish locomotion, e.g., when describing fish "walking" along the sea floor, as the handfish or frogfish.

The picture above is of Axolotl, an aquatic salamander native to Mexico, which is colloquially known as the "Mexican walking fish", although it is not a fish, but an amphibian.