Join a community of5,000+ocean lovers.

Sightings
5M+
Dive regions
232
App Store rating
5.0 ★

Scan to download the app

Download on the App StoreGet it on Google Play

Leaf scorpionfish

Taenianotus triacanthus

Leaf scorpionfish
Illustration by Into the Blue

About

The leaf scorpionfish is a small, camouflaged reef fish found across the Indo-Pacific, growing to about 10 cm. It looks and moves like a dead leaf drifting in the current.

Also known as: taenianotus triacanthus, leaf fish, leaffish, paper fish, paper scorpionfish, paperfish, sailfin leaf fish, sailfin leaffish, scorpionfish, swayfish, three-spined scorpionfish, threespine scorpionfish

Length
10 cm
Depth
5–20 m

How to tell it apart

Look for a small, flat, leaf-shaped fish that sways slowly from side to side instead of swimming normally. It can be almost any colour, so rely on the flattened leaf shape and swaying motion rather than colour to spot it.

Appearance

The body is almost flat, like a leaf, with a large head and mouth. A dark line runs through each eye. Colour is highly variable, ranging from green, red, pink, brown and ocher to a ghostly white, often with blotches that add to the camouflage. Fleshy tabs hang around the mouth, and algae or hydroids sometimes grow directly on its skin.

Habitat

This fish lives on coral reefs, from 5 to 135 m deep but usually between 5 and 20 m, on reef flats, outer reef slopes and in current-swept channels.

Behaviour

This species stays still for long periods and sways gently from side to side, mimicking a dead leaf drifting in the water. It is an ambush hunter: it waits for a small fish or shrimp to come close, edges toward it with its pectoral fins, then sucks the prey in with a sudden snap of its mouth.

Is it dangerous?

venomous

Did you know?

This fish sheds its skin twice a month, with the old skin peeling off starting from the head.

Log it in Into the Blue

Describe what you saw and we name it, then keep every species you find in your Oceandex.

Get the app

Similar species