Wideband Clownfish

The Wideband Clownfish (Amphiprion latezonatus) is an anemonefish in the family Pomacentridae, notable for occupying the coolest, most southerly range of any clownfish species. It is found only around Lord Howe Island, parts of eastern Australia, and New Caledonia, at the edge of the tropical anemonefish range. Unlike many reef-restricted anemonefish, it tolerates cooler subtropical waters and lives at somewhat greater depths, typically among rocky reef and coral habitat rather than shallow lagoons. It hosts almost exclusively on the anemone species Heteractis crispa in the wild. Its restricted range and specific host requirements make it one of the less commonly encountered clownfish species in the wild, despite being established in the aquarium trade through captive breeding.

• Body: deep and laterally compressed, larger than many anemonefish, reaching up to 17 cm
• Color: dark brown to near-black base color
• Bands: one broad white band across the mid-body flanked by two narrower white bars near the head and tail
• Feature: mature adults often develop a distinctive pale blue tint on the lips

The wide, single central band is the key identifying feature separating this species from the similarly banded Clark's Anemonefish, which shows three bands of roughly equal width. Its darker overall body color and blue-lip trait in adults further distinguish it from other banded anemonefish sharing its range.

Wideband Clownfish occupy rocky and coral reef habitat in a narrow subtropical range centered on Lord Howe Island, with additional populations along parts of eastern Australia and New Caledonia. It is typically found at depths of 10-45 meters, deeper than most other anemonefish, and tolerates cooler water temperatures than tropical clownfish species, reflecting its position at the southern edge of the anemonefish range. It associates almost exclusively with the leathery sea anemone Heteractis crispa, and its distribution closely tracks the availability of this host on rocky reef slopes and outcrops rather than shallow lagoon flats.

Like other anemonefish, the Wideband Clownfish lives in a small social group on a single host anemone, structured around a dominant breeding female and a subordinate breeding male, with juveniles remaining non-reproductive until they can advance in the hierarchy. All individuals are born male and can change sex to female if the dominant female is lost, a trait shared across the genus. Pairs spawn on cleared substrate near the anemone's base, and the male tends the eggs until they hatch. Because it lives at greater depths and cooler temperatures than most anemonefish, its activity patterns are less studied, but it follows the general clownfish pattern of strong site fidelity and rarely leaving the protection of its host.