Fin's Fish Guide
The Longspine squirrelfish (Holocentrus rufus) is a saltwater fish of the family Holocentridae that grows up to 35 cm.
Description
The longspine squirrelfish (Holocentrus rufus) is a squirrelfish of the family Holocentridae from the western Atlantic and Caribbean. The species has a reddish body with white markings, large eyes and long, sharp fin spines, and reaches about 35 cm. It is nocturnal and inhabits clear coral reefs, where it hides near caves and holes by day; at night it moves to sand and seagrass beds to hunt crabs, shrimps, snails and brittle stars. The large eyes aid nocturnal hunting. On the gill cover and in the fins it bears sharp spines that can cause puncture wounds; in larger specimens there are reports of ciguatera poisoning.
Frequently asked questions
How do you recognise the Longspine squirrelfish?
The Longspine squirrelfish has a torpedo-shaped body, is mainly red-orange and shows a horizontal stripes pattern. Large eyes and long, sharp fin spines; nocturnal reef dweller. Note: in tropical areas this species can cause ciguatera poisoning when eaten; large specimens of coral reef predators can accumulate the toxin. Eat with caution or avoid in risk areas.
Where does the Longspine squirrelfish live?
The Longspine squirrelfish lives in the sea (marine waters) and is mostly found around stony or rocky ground. Coral reefs of the western Atlantic and the Caribbean.
How big does the Longspine squirrelfish get?
The Longspine squirrelfish grows to a maximum of about 35 cm. On average the species is around 25 cm.
Is the Longspine squirrelfish dangerous to humans?
The Longspine squirrelfish is venomous — handle spines with care and seek medical help after a sting if needed. The sharp spines on the gill cover and fins can cause painful puncture wounds; clean and disinfect the wound thoroughly. Do not eat larger specimens in ciguatera areas: in case of tingling, nausea or reversed hot-cold sensation after consumption, seek medical help.
Is the Longspine squirrelfish edible?
The Longspine squirrelfish is rarely eaten.
More photos
Want the complete picture on the Longspine squirrelfish?
Point your camera at the fish and Fin names the species in seconds. Free, and the Longspine squirrelfish is one of 12,519 species in the app.
All data
Identification
Appearance
Habitat & distribution
Behaviour & biology
For anglers
Safety
Status & sources
Same genus Holocentrus
More from the family Holocentridae
Want the complete picture on the Longspine squirrelfish?
Point your camera at the fish and Fin names the species in seconds. Free, and the Longspine squirrelfish is one of 12,519 species in the app.