The Spot-fin porcupinefish (Diodon hystrix) is a saltwater fish of the family Diodontidae that grows up to 91 cm.
Description
The spot-fin porcupinefish is a large porcupinefish of the family Diodontidae reaching about 91 cm - one of the largest of the family. The brown body is covered with long, normally flat-lying spines and small black spots, with a black band across the eyes. When threatened the fish pumps itself up with water into a large ball, raising the spines erect and becoming unswallowable to most predators. With its jaws fused into a strong beak it crushes shellfish, sea urchins, snails and crabs. The species lives near reefs and rocky bottoms of shallow coastal water in tropical seas worldwide. Like many puffers and porcupinefishes its skin and organs may contain the poison tetrodotoxin; it should not be eaten.
Frequently asked questions
How do you recognise the Spot-fin porcupinefish?
The Spot-fin porcupinefish has a flattened, disc-shaped body, is mainly brown and shows a spots pattern.
Where does the Spot-fin porcupinefish live?
The Spot-fin porcupinefish lives in the sea (marine waters) and is mostly found around stony or rocky ground.
How big does the Spot-fin porcupinefish get?
The Spot-fin porcupinefish grows to a maximum of about 91 cm. On average the species is around 40 cm.
Is the Spot-fin porcupinefish dangerous to humans?
The Spot-fin porcupinefish is venomous — handle spines with care and seek medical help after a sting if needed.
Is the Spot-fin porcupinefish edible?
The Spot-fin porcupinefish is not usually eaten.
Download Fin's Fish Guide
Identify fish in seconds, log your catches and dives. Join the TestFlight beta.
All data
Identification
Appearance
Habitat & distribution
Behaviour & biology
For anglers
Safety
Status & sources
Same genus Diodon
More from the family Diodontidae
Download Fin's Fish Guide
Identify fish in seconds, log your catches and dives. Join the TestFlight beta.