👉 Chthonolasius is a genus of fish in the family Loricariidae that belongs to the order Loricaria, commonly known as the freshwater chelonians. These fish are characterized by their long, slender bodies and distinctive, flattened shell-like structures. They are found throughout the world's oceans, from tropical waters to cold, icy areas, where they can survive without a suitable environment. Chthonolasius is named for its characteristic appearance, often resembling the fish of the genus Ch
