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Dusky wrasse (Halichoeres marginatus) — Labridae

Dusky wrasse

Halichoeres marginatus
Family: Labridae
LC · Least Concern

The Dusky wrasse (Halichoeres marginatus) is a saltwater fish of the family Labridae that grows up to 18 cm.

Length
18 cm
Water
Saltwater
Depth
0.0–30.0 m
Diet
Carnivore
Behaviour
Solitary
Activity
Diurnal
Body shape
Torpedo-shaped
Substrate
Stone or rock
Danger
Harmless
Range
Indo-Pacific; lagoon and seaward reefs in coral-rich areas.
Edibility
Rarely eaten

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Description

The dusky wrasse is a wrasse of the family Labridae from the Indo-Pacific. The species grows to about 18 cm and changes colour strongly during life: juveniles are dark with two yellow, black-edged eyespots on the dorsal fin, while adults become greenish with reddish lines on the head. It inhabits lagoon and seaward reefs, along the upper edge of coral-rich areas. As a bottom predator it feeds on small invertebrates such as crustaceans and molluscs. Like many wrasses it changes sex during life, from female to male, and dives into the sand when threatened. The species is harmless to humans.

Frequently asked questions

How do you recognise the Dusky wrasse?

The Dusky wrasse has a torpedo-shaped body, is mainly green and shows a plain pattern. Strong colour change with growth; changes sex and dives into the sand when in danger.

Where does the Dusky wrasse live?

The Dusky wrasse lives in the sea (marine waters) and is mostly found around stony or rocky ground. Indo-Pacific; lagoon and seaward reefs in coral-rich areas.

How big does the Dusky wrasse get?

The Dusky wrasse grows to a maximum of about 18 cm.

Is the Dusky wrasse dangerous to humans?

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

Is the Dusky wrasse edible?

The Dusky wrasse is rarely eaten.

More photos

Dusky wrasse (Halichoeres marginatus) — Labridae — 2
Wikimedia Commons — zsispeo (CC BY-SA 2.0)
Dusky wrasse (Halichoeres marginatus) — Labridae — 3
iNaturalist ((c) François Libert, some rights reserved (CC BY-NC-SA))
Dusky wrasse (Halichoeres marginatus) — Labridae — 4
Wikimedia Commons — Philippe Bourjon (CC BY-SA 3.0)
Dusky wrasse (Halichoeres marginatus) — Labridae — 5
iNaturalist ((c) carsten_renker, some rights reserved (CC BY-NC))
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All data

Identification

English name
Dusky wrasse verified
Scientific name
Halichoeres marginatus
Family
Labridae
Other names
Dusky wrasse; Speckled rainbowfish; Splendid rainbow wrasse; Two-eyed wrasse; Wrasse verified

Appearance

Size class
Medium verified
Max length (cm)
18.0 verified
Body shape
Torpedo-shaped sourced
Dominant colour
Green inferred
Pattern
Plain 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)
0.0 verified
Max depth (m)
30.0 verified
Natural range
Indo-Pacific; lagoon and seaward reefs in coral-rich areas. inferred
Origin
Native sourced

Behaviour & biology

Diet
Carnivore sourced
Diet (detail)
Small invertebrates such as crustaceans and molluscs sourced
Social behaviour
Solitary inferred
Territorial
No inferred
Activity
Diurnal inferred
Reproduction
Protogynous (female first) sourced
Sexual dimorphism
Yes inferred
Seasonality
Present year-round in its habitat; no pronounced seasonality known. inferred
Special features
Strong colour change with growth; changes sex and dives into the sand when in danger. sourced

For anglers

Edibility
Rarely eaten sourced
Fishing method
Fishing with natural bait (fish, shrimp, worm) or lures close to reef and rock structures. 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 Halichoeres

More from the family Labridae

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