Such as the title? ， ? According to the online search, the picture should be

Doradidae (Acanthocidae)? Hessian catfish? Hassar ? South American fish (I don't know which one)

What is the picture below? Hessian catfish Hassar in Amazon? orestis ? Commonly known as? Dolphin armored warrior?

It is distributed in the Orinoco River, Amazon River and essequibo river Valley of Brazil, Colombia, Ecuador, Guyana, Peru and Venezuela in South America. It can reach 24.7 cm in length and inhabits the bottom and middle waters, and its living habits are unknown.