The Clearfin lionfish (Pterois radiata) is a saltwater fish of the family Scorpaenidae that grows up to 24 cm.
Description
The clearfin lionfish is a lionfish (Scorpaenidae) from the Indo-West Pacific. The species has a red-brown, white-banded body and very long, almost colourless, needle-fine pectoral and dorsal fin rays, and bears two conspicuous horizontal white lines on the tail base. It is a nocturnal inhabitant of lagoon and seaward reefs that hides in crevices by day. It hunts mainly crustaceans. The long dorsal fin spines are venomous; a sting is very painful.
Frequently asked questions
How do you recognise the Clearfin lionfish?
The Clearfin lionfish has a torpedo-shaped body, is mainly red-orange and shows a vertical stripes pattern. Very long, needle-fine fin rays and small white stripes on the tail; nocturnal lionfish with venomous spines.
Where does the Clearfin lionfish live?
The Clearfin lionfish lives in the sea (marine waters) and is mostly found around stony or rocky ground. Indo-West Pacific; lagoon and seaward reefs.
How big does the Clearfin lionfish get?
The Clearfin lionfish grows to a maximum of about 24 cm. On average the species is around 20 cm.
Is the Clearfin lionfish dangerous to humans?
The Clearfin lionfish is venomous — handle spines with care and seek medical help after a sting if needed. If stung by a fin spine: immerse the affected part in water as hot as can be tolerated (about 45 degrees C) to break down the venom, and seek medical care for severe or persistent symptoms.
Is the Clearfin lionfish edible?
The Clearfin lionfish is not usually eaten.
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All data
Identification
Appearance
Habitat & distribution
Behaviour & biology
For anglers
Safety
Status & sources
Same genus Pterois
More from the family Scorpaenidae

Want the complete picture on the Clearfin lionfish?
Point your camera at the fish and Fin names the species in seconds. Free, and the Clearfin lionfish is one of 12,519 species in the app.