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Mandarinfish (Synchiropus splendidus) — Callionymidae

Mandarinfish

Synchiropus splendidus
Family: Callionymidae
LC · Least Concern

The Mandarinfish (Synchiropus splendidus) is a saltwater fish of the family Callionymidae that grows up to 7 cm.

Length
7 cm
Water
Saltwater
Depth
1.0–18.0 m
Diet
Carnivore
Behaviour
Small groups
Body shape
Torpedo-shaped
Substrate
Stone or rock
Danger
Harmless
Range
Western Pacific; sheltered lagoons and coastal reefs on silty bottoms.
Edibility
Not eaten

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Description

The mandarinfish is a small dragonet (Callionymidae) from the western Pacific, famous for its exuberant colours: a green body with winding orange, blue and yellow lines. It inhabits shallow, sheltered lagoons and inshore reefs on silty bottoms with coral and rubble, where it scuttles along the bottom. It lacks scales; instead a thick, reportedly toxic and foul-smelling mucus layer protects it against predators and disease. It feeds on small crustaceans and invertebrates. The species is harmless to humans.

Frequently asked questions

How do you recognise the Mandarinfish?

The Mandarinfish has a torpedo-shaped body, is mainly green and shows a plain pattern. Exuberantly green with winding colour lines; scaleless, with a protective poisonous mucus layer.

Where does the Mandarinfish live?

The Mandarinfish lives in the sea (marine waters) and is mostly found around stony or rocky ground. Western Pacific; sheltered lagoons and coastal reefs on silty bottoms.

How big does the Mandarinfish get?

The Mandarinfish grows to a maximum of about 7 cm.

Is the Mandarinfish dangerous to humans?

No, the Mandarinfish is harmless to humans. None required: this species is harmless to humans.

Is the Mandarinfish edible?

The Mandarinfish is not usually eaten.

More photos

Mandarinfish (Synchiropus splendidus) — Callionymidae — 2
Wikimedia Commons — Diego Delso (CC BY-SA 4.0)
Mandarinfish (Synchiropus splendidus) — Callionymidae — 3
Wikimedia Commons — Diego Delso (CC BY-SA 4.0)
Mandarinfish (Synchiropus splendidus) — Callionymidae — 4
iNaturalist ((c) Francois Libert, some rights reserved (CC BY-NC))
Mandarinfish (Synchiropus splendidus) — Callionymidae — 5
Wikimedia Commons — Steve Childs (CC BY 2.0)
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All data

Identification

English name
Mandarinfish verified
Scientific name
Synchiropus splendidus
Family
Callionymidae
Other names
Mandarinfish; Mandarin-fish verified

Appearance

Size class
Small verified
Max length (cm)
7.0 verified
Body shape
Torpedo-shaped sourced
Dominant colour
Green inferred
Pattern
Plain inferred
Tail shape
Rounded inferred
Mouth position
Inferior (downward) inferred
Lips
Thick / fleshy inferred
Barbels
No sourced
Dorsal fins
Two separate 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)
18.0 verified
Natural range
Western Pacific; sheltered lagoons and coastal reefs on silty bottoms. inferred
Origin
Native sourced

Behaviour & biology

Diet
Carnivore sourced
Diet (detail)
Small crustaceans and invertebrates sourced
Social behaviour
Small groups inferred
Territorial
No inferred
Reproduction
Separate sexes sourced
Sexual dimorphism
Yes inferred
Seasonality
Present year-round in its habitat; no pronounced seasonality known. inferred
Special features
Exuberantly green with winding colour lines; scaleless, with a protective poisonous mucus layer. 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
Harmless sourced
First aid
None required: this species is harmless to humans. sourced

Status & sources

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

Same genus Synchiropus

More from the family Callionymidae

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