Peacock Mantis Shrimp (Odontodactylus scyllarus) in the wild — Catch'Um species field guide

Peacock Mantis Shrimp (Odontodactylus scyllarus) wildlife photograph

Overview

Peacock mantis shrimp are vividly coloured stomatopods of Indo-Pacific reefs. Smashers pack calcified clubs that strike prey with blistering speed, sometimes creating cavitation bubbles that stun.

For Indonesia and Australia collectors, a peacock mantis at a burrow entrance is a rare reef card — colour, power, and alien eyes.

Scientific nameOdontodactylus scyllarus
Length3–18 cm; commonly around 8–15 cm
LifespanAround 3–6 years in the wild
DietSmash hard-shelled crabs
ConservationLeast Concern
RegionCoral Reef Burrows

Habitat

Coral reef
Reef rubble
Sandy burrows

Coral reefs, rubble, and sandy burrows of the tropical Indo-Pacific, including Indonesian and Australian waters, where they defend dens and ambush passing crustaceans and molluscs.

Countries found

Field notes

Field scale for the Peacock Mantis Shrimp: length around 3-18 cm; commonly around 8-15 cm. Typical lifespan: Around 3-6 years in the wild.

When you are scanning habitat, prioritise coral reef, reef rubble, and sandy burrows. Those settings are where a clean look and a usable photo are most likely.

Quick ID anchor: Brilliant green, blue, and red patterning; club-shaped smashers rather than spear appendages. Confirm with behaviour and habitat before you log the discovery.

Diet

Smash hard-shelled crabs, snails, and other invertebrates with club-like raptorial appendages.

Ambush from burrow mouths on the reef floor.

Behaviour

Territorial around burrows; threaten rivals with raised clubs and display colours.

Highly visual hunters that track prey with independently moving eyes.

How to identify

Brilliant green, blue, and red patterning; club-shaped smashers rather than spear appendages.

Stalked eyes and flattened, armoured body suited to reef crevices.

Interesting facts

01
Smashers strike with clubs faster than a bullet's eyeblink scale in water.
02
Cavitation bubbles from the strike can stun prey a second time.
03
Compound eyes have extraordinary colour and polarisation vision.
04
Live in self-dug or borrowed burrows on the reef.
05
Diet includes crabs, snails, and other hard-shelled prey.
06
Bright greens, blues, and reds earn the 'peacock' name.

Conservation status

LC: Least Concern

Peacock mantis shrimp are not formally assessed as threatened and remain widespread on Indo-Pacific reefs. Coral degradation and collection for aquaria can affect local numbers.

Sources: IUCN Red List