Indian Teardrop Butterflyfish

Overview

The Indian Teardrop Butterflyfish (Chaetodon interruptus) is a vibrant, disc-shaped marine fish native to the Indian Ocean. It is widely recognized by its bright yellow body and distinctive dark markings, making it a common sight for divers and snorkelers across its range.

Distribution & habitat

This species is found throughout the Indian Ocean, ranging from the coast of East Africa and South Africa to Sumatra, Indonesia, and Thailand. It typically inhabits coral-rich environments, including reef flats, lagoons, and deep sloping drop-offs, often at depths between 2 and 45 meters.

Appearance

The body is laterally compressed and primarily bright yellow, featuring faint, vertical chevron-like lines. A bold black band runs vertically through the eye, and a characteristic teardrop-shaped black spot is located on the upper flank. Juveniles differ slightly in appearance, possessing a rounder spot often rimmed with white or blue, which transitions into the signature teardrop shape and yellow coloration as the fish matures. A thin black patch with a white edge is also present at the rear of the dorsal and anal fins.

Biology & behavior

These butterflyfish are diurnal and generally observed in pairs or small groups. They are known to be somewhat shy, often staying close to the reef structure and retreating into cover when approached. While they are generally peaceful toward other species, they may display territorial behavior toward their own kind.

Feeding

This species is an omnivore with a strong preference for coral polyps, making it a specialized feeder. Its natural diet also includes sponges, small invertebrates, polychaete worms, and filamentous algae, which it grazes from the reef surface.