Freshwater

Freshwater fish spend part or all of their lives in fresh water, such as rivers and lakes, with a salinity of less than 1.05%.

Genus

Showing 1–2 of 2

Synodontis nigriventris

Body stocky, slightly flattened at the sides. Back more convex than abdomen, eyes large, mouth lower …

Petromyzon marinus

Fish without jaws are fish-like vertebrates, eel-like in shape, with a cartilaginous or fibrous skeleton in …