Leaf scorpionfish
A small reef fish that mimics a drifting leaf to ambush prey.
The leaf scorpionfish is a tiny marine predator found across the Indo-Pacific. It uses extreme camouflage and leaf-like movements to trap small crustaceans and fish on coral reefs.
- Grows to only 10 cm in length
- Molts every 10 to 14 days
- Can change colour after molting
- Mimics a drifting dead leaf
- Found on reefs down to 130 m
What it is
The leaf scorpionfish is a small marine ray-finned fish belonging to the scorpionfish family. Adults reach about 10 cm in length. Its body is extremely flat, resembling a dead leaf. Colours vary widely, including green, red, pink, brown, ochre, yellow, and ghostly white. A dark line runs through its eyes. The large dorsal fin extends from behind the head to the tail, featuring 12 spines and up to 11 soft rays. Skin blotches and sometimes growing algae enhance its disguise.
Where it lives
This species has a wide distribution across the tropical Indo-Pacific. It occurs from the east African coast and the Red Sea eastward. Its range extends north to the Ryukyu Islands and Hawaii, and south to the coast of New South Wales. It also reaches the Galapagos Islands. The fish lives in tropical waters on coral reefs. It inhabits depths from shallow areas down to 130 metres.
How it lives
The leaf scorpionfish is an ambush predator. It remains still to mimic a drifting inert object. To improve this illusion, it makes gentle sideways movements with its pelvic area. It waits for small fish, shrimp, or larvae to approach. The predator moves slowly using its pectoral fins. When close enough, it sucks in the prey by suddenly opening its large mouth. Its venom is considerably weaker than that of lionfish or stonefish.
Fish and people
The fish is known by several names, including paperfish and sailfin leaffish. Its unique appearance and behaviour make it notable. The genus name refers to its long dorsal fin, while the species name references three spines, though it actually has two preopercular spines. It is not typically a food fish due to its small size and venomous spines.
Questions people ask about Leaf scorpionfish
How does the leaf scorpionfish catch its food?
It acts as an ambush predator. The fish mimics a dead leaf drifting in the water, even moving its pelvic fins sideways to look inert. When prey like small shrimp or fish gets close, it sucks them in with a sudden mouth opening.
Is the leaf scorpionfish dangerous to humans?
It possesses venomous spines, but its venom is considerably weaker than that of the lionfish or stonefish. While it should be handled with care due to these spines, it is not considered highly dangerous compared to its relatives.
Where can you find the leaf scorpionfish?
It has a wide Indo-Pacific distribution. You can find it from the Red Sea and east Africa to Hawaii, the Galapagos, and New South Wales. It lives on coral reefs in tropical waters at depths up to 130 metres.
Good reading and sources
The facts on this page come from the Wikipedia article "Taenianotus", written by its contributors and used under the CC BY-SA 4.0 licence, and from its Wikidata record (CC0). EveryFish rewrote the text in its own words, with AI assistance, and compares every page with the article to make sure no passage is copied. It may be reused under the same CC BY-SA 4.0 licence with a link back.
It may contain mistakes, and figures change over time. Nothing here is investment or buying advice. If something is wrong, tell us. Last refreshed 2026-11-15.
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