Bluestripe Lizardfish

Overview

The Bluestripe Lizardfish is a slender, bottom-dwelling predator widely distributed across the tropical Indo-Pacific. Often found resting on sandy or rubble-strewn substrates, it is a master of camouflage that frequently buries itself, leaving only its eyes and nostrils exposed to scan for prey.

Appearance

This species features an elongated, cylindrical body typically reaching up to 24 cm in length. Its coloration is generally brownish, marked by five to seven irregular dark saddles along the back and a series of dark, often pale-centered blotches along the flanks. A distinctive pale blue stripe runs horizontally above the lateral line, and the snout is characterized by a cluster of six dark spots and a long, slender nasal tentacle. The fish also possesses a large, wide mouth lined with sharp, needle-like teeth.

Distribution & habitat

The Bluestripe Lizardfish inhabits tropical marine waters from the Red Sea and the Indian Ocean through to the central Pacific, including Hawaii and the Tuamotu Islands. It is commonly encountered in lagoons and on seaward reefs, typically at depths ranging from 1 to 70 meters.

Biology & behavior

Primarily solitary, this lizardfish is an ambush predator that relies on its ability to blend into the seafloor. It feeds on small fish and crustaceans, often darting upward from its hiding spot to capture passing prey. During mating, social interactions may occur, with multiple males occasionally observed courting a single female. Courting males may display aggression toward rivals by positioning themselves atop the female while spreading their fins and puffing out their opercula.