Home · Muraenidae · Dark moray
Dark moray (Gymnothorax afer) — Muraenidae

Dark moray

Gymnothorax afer
Family: Muraenidae

The Dark moray (Gymnothorax afer) is a brackish-water fish of the family Muraenidae that grows up to 100 cm.

Length
100 cm
Water
Brackish
Depth
10–45 m
Behaviour
Solitary
Activity
Nocturnal
Body shape
Snake-like
Substrate
Sand / mud bottom
Danger
May bite
Range
Africa: Angola, Cameroon, Cape Verde, Congo, Congo Dem Rp, Benin and others
Edibility
Commonly eaten

Want the complete picture on the Dark moray?

Description

The dark moray is a moray (Muraenidae) from the eastern Atlantic, off West Africa, and adjacent brackish water. The species grows to about 1 metre and has an elongate, snake-shaped, scaleless, uniformly dark-brown body. As a nocturnal predator it hides by day in crevices and holes, with only the head showing, and seizes fish and crustaceans at night. It bites fiercely when disturbed; handle with care.

Frequently asked questions

How do you recognise the Dark moray?

The Dark moray has a snake-like body and is mainly brown. Can bite with sharp teeth or powerful jaws; handle with care.

Where does the Dark moray live?

The Dark moray lives in brackish water and is mostly found around sand or mud bottom. Africa: Angola, Cameroon, Cape Verde, Congo, Congo Dem Rp, Benin and others

How big does the Dark moray get?

The Dark moray grows to a maximum of about 100 cm. On average the species is around 60 cm.

Is the Dark moray dangerous to humans?

The Dark moray can bite, but is otherwise not dangerous to humans. Do not feed or reach into crevices. For a bite: rinse the wound thoroughly with clean water, apply firm pressure to stop bleeding and cover with a sterile dressing. Moray bites are deep and prone to infection: always have them assessed medically and check tetanus status.

Is the Dark moray edible?

Yes, the Dark moray is commonly eaten.

More photos

Dark moray (Gymnothorax afer) — Muraenidae — 2
iNaturalist ((c) Adrien Groul, some rights reserved (CC BY-NC))

Want the complete picture on the Dark moray?

Point your camera at the fish and Fin names the species in seconds. Free, and the Dark moray is one of 12,519 species in the app.

All data

Identification

English name
Dark moray sourced
Scientific name
Gymnothorax afer
Family
Muraenidae

Appearance

Size class
Extra large verified
Max length (cm)
100 verified
Average length (cm)
60 verified
Body shape
Snake-like sourced
Dominant colour
Brown sourced
Tail shape
Straight

Habitat & distribution

Water type
Brackish sourced
Substrate
Sand / mud bottom sourced
Min depth (m)
10 verified
Max depth (m)
45 verified
Natural range
Africa: Angola, Cameroon, Cape Verde, Congo, Congo Dem Rp, Benin and others sourced
Origin
Native

Behaviour & biology

Social behaviour
Solitary
Territorial
No
Activity
Nocturnal sourced
Reproduction
Separate sexes
Sexual dimorphism
No
Seasonality
Present year-round in its habitat; no pronounced seasonality known.
Special features
Can bite with sharp teeth or powerful jaws; handle with care.

For anglers

Edibility
Commonly eaten
Fishing method
Bottom fishing with natural bait (worm, shrimp or fish) on or just above the seabed.
Regulations source

Safety

Danger to humans
May bite verified
First aid
Do not feed or reach into crevices. For a bite: rinse the wound thoroughly with clean water, apply firm pressure to stop bleeding and cover with a sterile dressing. Moray bites are deep and prone to infection: always have them assessed medically and check tetanus status. sourced

Status & sources

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

Same genus Gymnothorax

More from the family Muraenidae

Want the complete picture on the Dark moray?

Point your camera at the fish and Fin names the species in seconds. Free, and the Dark moray is one of 12,519 species in the app.

Is this the Dark moray?