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Rainbow scorpionfish (Scorpaenodes xyris) — Scorpaenidae

Rainbow scorpionfish

Scorpaenodes xyris
Family: Scorpaenidae
LC · Least Concern

The Rainbow scorpionfish (Scorpaenodes xyris) is a saltwater fish of the family Scorpaenidae that grows up to 15 cm.

Length
15 cm
Water
Saltwater
Depth
0.0–30.0 m
Diet
Carnivore
Behaviour
Solitary
Activity
Nocturnal
Body shape
Torpedo-shaped
Substrate
Stone or rock
Danger
Venomous / poisonous
Range
Eastern Pacific, from the Gulf of California to Peru and the oceanic islands.
Edibility
Not eaten

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Description

The rainbow scorpionfish is a small predatory fish of the family Scorpaenidae from the eastern Pacific. The species has a stocky, red-brown mottled body that provides camouflage, and reaches about 15 cm. It is common but inconspicuous and stays hidden in cracks, under ledges and on rock walls; small individuals often shelter among the long spines of sea urchins. The fin spines are venomous. It is an ambush predator feeding on small fishes and crustaceans. Because of its small size the species has no fishery value.

Frequently asked questions

How do you recognise the Rainbow scorpionfish?

The Rainbow scorpionfish has a torpedo-shaped body, is mainly red-orange and shows a marbled pattern. Venomous fin spines; well-camouflaged stalking predator; juveniles shelter among the spines of sea urchins.

Where does the Rainbow scorpionfish live?

The Rainbow scorpionfish lives in the sea (marine waters) and is mostly found around stony or rocky ground. Eastern Pacific, from the Gulf of California to Peru and the oceanic islands.

How big does the Rainbow scorpionfish get?

The Rainbow scorpionfish grows to a maximum of about 15 cm.

Is the Rainbow scorpionfish dangerous to humans?

The Rainbow scorpionfish is venomous — handle spines with care and seek medical help after a sting if needed. Be careful of the fin spines, which can carry venom and cause painful puncture wounds. Clean the wound and immerse it in water as hot as can be tolerated (about 45 °C) to break down the venom; seek medical help in case of severe pain, swelling or an allergic reaction.

Is the Rainbow scorpionfish edible?

The Rainbow scorpionfish is not usually eaten.

More photos

Rainbow scorpionfish (Scorpaenodes xyris) — Scorpaenidae — 2
iNaturalist ((c) Guillermo Joaquin Martinez Mendoza, some rights reserved (CC BY-NC))
Rainbow scorpionfish (Scorpaenodes xyris) — Scorpaenidae — 3
iNaturalist ((c) Billy Bensted-Smith, some rights reserved (CC BY-NC))
Rainbow scorpionfish (Scorpaenodes xyris) — Scorpaenidae — 4
iNaturalist ((c) Billy Bensted-Smith, some rights reserved (CC BY-NC))
Rainbow scorpionfish (Scorpaenodes xyris) — Scorpaenidae — 5
iNaturalist ((c) Irene Domhoff, some rights reserved (CC BY-NC))
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All data

Identification

English name
Rainbow scorpionfish verified
Scientific name
Scorpaenodes xyris
Family
Scorpaenidae
Other names
Rainbow scorpionfish verified

Appearance

Size class
Small verified
Max length (cm)
15.0 verified
Body shape
Torpedo-shaped sourced
Dominant colour
Red / orange inferred
Pattern
Marbled inferred
Tail shape
Rounded inferred
Mouth position
Superior (upward) inferred
Lips
Thin inferred
Barbels
No sourced
Dorsal fins
One continuous inferred
Dorsal spines
Yes sourced

Habitat & distribution

Water type
Saltwater sourced
Substrate
Stone or rock sourced
Min depth (m)
0.0 verified
Max depth (m)
30.0 verified
Natural range
Eastern Pacific, from the Gulf of California to Peru and the oceanic islands. inferred
Origin
Native sourced

Behaviour & biology

Diet
Carnivore sourced
Diet (detail)
Small fishes and crustaceans sourced
Social behaviour
Solitary inferred
Territorial
Yes inferred
Activity
Nocturnal inferred
Reproduction
Separate sexes sourced
Sexual dimorphism
No inferred
Seasonality
Present year-round in its habitat; no pronounced seasonality known. inferred
Special features
Venomous fin spines; well-camouflaged stalking predator; juveniles shelter among the spines of sea urchins. sourced

For anglers

Edibility
Not eaten sourced
Fishing method
Not a target species for angling; at most an incidental catch or usable as baitfish. inferred
Regulations source
FishBase ↗ inferred

Safety

Danger to humans
Venomous / poisonous sourced
First aid
Be careful of the fin spines, which can carry venom and cause painful puncture wounds. Clean the wound and immerse it in water as hot as can be tolerated (about 45 °C) to break down the venom; seek medical help in case of severe pain, swelling or an allergic reaction. sourced

Status & sources

Sources
FishBase via GBIF (DwC-A), CC-BY-NC 4.0

Same genus Scorpaenodes

More from the family Scorpaenidae

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