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Coral croucher (Caracanthus unipinna) — Scorpaenidae

Coral croucher

Caracanthus unipinna
Family: Scorpaenidae
LC · Least Concern

The Coral croucher (Caracanthus unipinna) is a saltwater fish of the family Scorpaenidae that grows up to 5 cm.

Length
5 cm
Water
Saltwater
Depth
1.0–15.0 m
Diet
Carnivore
Behaviour
Small groups
Body shape
Flat / disc-shaped
Substrate
Stone or rock
Danger
Venomous / poisonous
Edibility
Not eaten

Description

The pygmy coral croucher is a small fish of the coral croucher family (Caracanthidae), related to the scorpionfishes, from the Indo-West Pacific. The species is small and has a stocky, laterally compressed, velvety body that blends in among the branches of branching corals. It lives permanently hidden among the branches of certain stony corals, such as Stylophora and Acropora, and almost never leaves this refuge. It feeds on small zooplankton and small crustaceans. The dorsal, pelvic and anal fin spines are venomous and can give a painful puncture wound; treat a sting with hot water.

Frequently asked questions

How do you recognise the Coral croucher?

The Coral croucher has a flattened, disc-shaped body, is mainly brown and shows a spots pattern.

Where does the Coral croucher live?

The Coral croucher lives in the sea (marine waters) and is mostly found around stony or rocky ground.

How big does the Coral croucher get?

The Coral croucher grows to a maximum of about 5 cm.

Is the Coral croucher dangerous to humans?

The Coral croucher is venomous — handle spines with care and seek medical help after a sting if needed.

Is the Coral croucher edible?

The Coral croucher is not usually eaten.

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All data

Identification

Dutch name
Dwerg-koraalhurker sourced
English name
Coral croucher verified
Scientific name
Caracanthus unipinna
Family
Scorpaenidae
Other names
Coral croucher; Penny velvetfish; Pigmy croucher; Pygmy coral croucher verified

Appearance

Size class
Small verified
Max length (cm)
5.0 verified
Body shape
Flat / disc-shaped sourced
Dominant colour
Brown inferred
Pattern
Spots inferred
Tail shape
Rounded inferred
Mouth position
Terminal inferred
Lips
Thick / fleshy 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)
1.0 verified
Max depth (m)
15.0 verified
Origin
Native sourced

Behaviour & biology

Diet
Carnivore sourced
Social behaviour
Small groups inferred
Territorial
No inferred
Reproduction
Separate sexes sourced
Sexual dimorphism
No inferred

For anglers

Edibility
Not eaten sourced
Fishing method
Geen doelsoort voor de hengelsport; hooguit incidentele vangst of bruikbaar als aasvisje. inferred
Regulations source
FishBase ↗ inferred

Safety

Danger to humans
Venomous / poisonous sourced

Status & sources

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

Same genus Caracanthus

More from the family Scorpaenidae

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