Appearance
Platycephalids are small to medium-sized fish. Most species are small, reaching an average of 10 cm in length. However, a few species in the genus Platycephalus are known to grow up to over a 1 m (3 ft 3 in) in length. Their most distinctive characteristic is the flattened shape of their heads. While the rest of their bodies is shaped similarly to other fish that inhabit the areas they frequent, their heads are triangle-shaped and dorsoventrally depressed, giving them the shape of a trowel or an artist's spatula. Their eyes are situated on the upper surface, in accordance with their bottom-dwelling lifestyle. They possess two complete dorsal fins, the first one supported by six to 9 strong spines.


