Eclipse Parrotfish

Overview

The Eclipse Parrotfish (Scarus russelii) is a reef-associated species native to the Indian Ocean, ranging from East Africa to Thailand. Often observed as a solitary and wary fish, it is frequently found in shallow coastal waters and along outer reef slopes.

Appearance

This species exhibits distinct color phases. Initial-phase individuals are generally reddish to purplish-brown, often featuring five dark vertical bars on the flanks and orange-red markings on each scale. Terminal-phase males display a striking bicolored pattern, with the anterior half of the body appearing dark blue-green and the posterior portion a lighter shade. They are further distinguished by salmon-pink scale margins and a characteristic horizontal yellow or pink patch on the lower cheek.

Biology & behavior

Like other parrotfishes, this species is a herbivore that grazes on benthic algae. It is commonly found foraging over sand patches and coral rubble. While typically solitary, it is known to be a wary fish. It is considered harmless to humans and is occasionally seen in local fish markets within its range.