Eared Blenny

Overview

The Eared blenny (Cirripectes auritus), also known as the blackflap blenny, is a small, reef-associated fish found throughout the Indo-West Pacific. It is most easily recognized by the distinctive, earlike skin flaps located on either side of its nape, from which it derives both its scientific and common names.

Distribution & habitat

This species is widely distributed across the Indo-West Pacific, ranging from the coasts of Kenya and South Africa to the Philippines, Thailand, and the Line Islands. It typically inhabits shallow, protected coral reefs, often favoring areas with abundant algae growth.

Appearance

This blenny has a short, deep body that can appear cream, pink, or brown, often featuring mottled patterns and tiny dark spots across the posterior half of its body. Its most defining feature is the pair of blackish, fringed nuchal flaps behind the eyes. The species exhibits some color variation depending on sex and geographic location; for instance, females in certain regions may display more pronounced mottling or distinct streaks on the head compared to males.

Biology & behavior

Eared blennies are generally shy and tend to dart into crevices or holes when approached, making them challenging to observe closely in the wild. They are known to live in pairs and are often found resting on the reef substrate. Like other members of the combtooth blenny family, they possess a curious and lively personality.