Fish

Stonefish

Synanceia verrucosa

The most widespread and dangerously camouflaged of the stonefishes, a warty, immobile lump of venomous reef that is easy to tread on and impossible to spot.

Also known as steenvis

Stonefish
Photo: Franco Colnago · CC BY-NC 4.0
Typical size
Attains 35 cm
Habitat
Shallow water among coral rubble and reef

The stonefish is a globular, motionless ambush predator whose body is covered in wart-like growths, letting it vanish against coral rubble and reef. Its eyes sit far apart with a deep pit between them, and huge fan-like pectorals help it settle onto the bottom. Everything about it says leave alone: the dorsal spines carry a potent venom.

It reaches about 35 cm and is the most widespread stonefish, ranging from the Red Sea across the tropical Indo-Pacific and south to Durban. It favours shallow water among coral rubble and reef, exactly where a wading or diving foot is likely to find it.