The dorsal fin starts in front of its upper eye and of the nostrils on blind side.

There are several pairs of moderately large caniform teeth in the anterior parts of both jaws, which are of unequal size and arranged in a single row.

The body is greenish to pale brownish in colour and is normally marked with variously sized rings, and there is frequently two dark blotches on the straight and the curved sections of the lateral line with a smaller blotch which is half-way to the caudal-fin peduncle.

They grow to 50 cm, but 30 cm in length is the more usual size[2] Pseudorhombus arsius is found in the tropical and temperate waters from the Persian Gulf and the eastern coast of Africa as far south as Algoa Bay and possibly even Knysna to Fiji in the western Pacific, to southern Japan in the north and as far south as the northern coast of Australia.

The sex ratio is always biased towards females and the fecundity of the fish is dependent on its total length and body weight.

[2] Pseudorhombus arsius is subjected to a minor commercial fishery in West Bengal in the estuary of the Hooghly River.