How to spot the Mantis shrimp when scuba diving

Odontodactylus scyllarus

Found in tropical and subtropical waters worldwide, primarily in the Indo-Pacific region. Most species inhabit shallow coastal waters, coral reefs, and seagrass beds from intertidal zones down to about 40m depth.

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When to spot

Can be encountered year-round in suitable habitats. Primarily diurnal (day-active), making daytime dives ideal for spotting them, though some species are more active at dawn and dusk.

Water

Primarily found in warm tropical and subtropical waters with temperatures ranging from 22-30°C (72-86°F).

How to spot

Best spotted in sandy or rubble areas near coral reefs or in muck diving sites. Look for their distinctive burrows or holes, often identified by small mounds of substrate or paired antenna protruding. Prime locations include Lembeh Strait (Indonesia), Anilao (Philippines), and various sites in Malaysia, Thailand, and throughout the Indo-Pacific. Approach cautiously as some species can strike defensively with considerable force.

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