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Marbled eel (Uropterygius marmoratus) — Muraenidae

Marbled eel

Uropterygius marmoratus
Family: Muraenidae
LC · Least Concern

The Marbled eel (Uropterygius marmoratus) is a brackish-water fish of the family Muraenidae that grows up to 62 cm.

Length
62 cm
Water
Brackish
Depth
1.0–20.0 m
Diet
Carnivore
Behaviour
Solitary
Activity
Nocturnal
Body shape
Snake-like
Substrate
Stone or rock
Danger
Harmless
Range
Indo-West Pacific; reef flats and seaward reefs.
Edibility
Rarely eaten

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Description

The marbled moray is a moray eel (Muraenidae) from the Indo-West Pacific. The species has an eel-shaped, scaleless body with a marbled brown-white pattern and needle-sharp teeth; the dorsal, caudal and anal fins form a low fringe and pelvic and pectoral fins are absent. It is bottom-dwelling in crevices from shallow water to about 121 m deep and is a relatively uncommon inhabitant of reef flats and seaward reefs. At night it hunts small fishes and crustaceans. The sharp teeth can give a serious bite when handled; otherwise the fish is not aggressive.

Frequently asked questions

How do you recognise the Marbled eel?

The Marbled eel has a snake-like body, is mainly brown and shows a spots pattern. Marbled brown-white pattern; eel-shaped moray that shelters in reef crevices during the day and hunts at night.

Where does the Marbled eel live?

The Marbled eel lives in brackish water and is mostly found around stony or rocky ground. Indo-West Pacific; reef flats and seaward reefs.

How big does the Marbled eel get?

The Marbled eel grows to a maximum of about 62 cm.

Is the Marbled eel dangerous to humans?

No, the Marbled eel is harmless to humans. The sharp teeth can give a serious bite when handled. Clean and disinfect the wound thoroughly; moray bites readily become infected, so seek medical care for a deep wound or infection.

Is the Marbled eel edible?

The Marbled eel is rarely eaten.

More photos

Marbled eel (Uropterygius marmoratus) — Muraenidae — 2
Williams, Jeffrey T. (CC0 1.0) via GBIF — USNM
Marbled eel (Uropterygius marmoratus) — Muraenidae — 3
iNaturalist ((c) Kyle Van Houtan, some rights reserved (CC BY))
Marbled eel (Uropterygius marmoratus) — Muraenidae — 4
iNaturalist ((c) MSTour, some rights reserved (CC BY-NC))
Marbled eel (Uropterygius marmoratus) — Muraenidae — 5
iNaturalist ((c) MSTour, some rights reserved (CC BY-NC))
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All data

Identification

English name
Marbled eel verified
Scientific name
Uropterygius marmoratus
Family
Muraenidae
Other names
Marbled moray; Marbled reef-eel; Marbled snake moray; Marbled snakemoray; Slender conger eel verified

Appearance

Size class
Large verified
Max length (cm)
62.0 verified
Body shape
Snake-like sourced
Dominant colour
Brown inferred
Pattern
Spots inferred
Mouth position
Terminal inferred
Lips
Thick / fleshy inferred
Barbels
No sourced
Dorsal fins
One continuous inferred
Dorsal spines
No sourced

Habitat & distribution

Water type
Brackish sourced
Substrate
Stone or rock sourced
Min depth (m)
1.0 verified
Max depth (m)
20.0 verified
Natural range
Indo-West Pacific; reef flats and seaward reefs. inferred
Origin
Native sourced

Behaviour & biology

Diet
Carnivore sourced
Diet (detail)
Small fishes and crustaceans sourced
Social behaviour
Solitary inferred
Territorial
No 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
Marbled brown-white pattern; eel-shaped moray that shelters in reef crevices during the day and hunts at night. 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
The sharp teeth can give a serious bite when handled. Clean and disinfect the wound thoroughly; moray bites readily become infected, so seek medical care for a deep wound or infection. sourced

Status & sources

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

Same genus Uropterygius

More from the family Muraenidae

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