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California moray (Gymnothorax mordax) — Muraenidae

California moray

Gymnothorax mordax
Family: Muraenidae
LC · Least Concern

The California moray (Gymnothorax mordax) is a saltwater fish of the family Muraenidae that grows up to 152 cm.

Length
152 cm
Water
Saltwater
Depth
1–40 m
Diet
Carnivore
Behaviour
Solitary
Activity
Nocturnal
Body shape
Snake-like
Substrate
Sand / mud bottom
Danger
May bite
Range
Eastern Pacific, from California to Baja California.
Edibility
Commonly eaten

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Description

The California moray is a moray eel (Muraenidae) from the eastern Pacific, from California to Baja California. The species reaches about 152 cm and has a muscular, brown-green, eel-like body. It is very common in shallow reef areas, where it lives in crevices and holes, usually with only the head protruding. By day it stays hidden; at night it hunts crustaceans, octopuses and small fishes. The species is long-lived and reproduces as a pelagic spawner. With its sharp teeth it can deliver a serious bite when handled or provoked.

Frequently asked questions

How do you recognise the California moray?

The California moray has a snake-like body, is mainly brown and shows a plain pattern. Long-lived moray that protrudes from a crevice with only its head during the day; can bite hard.

Where does the California moray live?

The California moray lives in the sea (marine waters) and is mostly found around sand or mud bottom. Eastern Pacific, from California to Baja California.

How big does the California moray get?

The California moray grows to a maximum of about 152 cm. On average the species is around 70 cm.

Is the California moray dangerous to humans?

The California moray can bite, but is otherwise not dangerous to humans. Morays can inflict a deep, ragged bite with their sharp, rearward-pointing teeth that readily becomes infected. Do not provoke or feed the animal and do not put a hand into crevices; flush a bite thoroughly and seek medical help.

Is the California moray edible?

Yes, the California moray is commonly eaten.

More photos

California moray (Gymnothorax mordax) — Muraenidae — 2
iNaturalist ((c) Daniel Hetzel, some rights reserved (CC BY-NC))
California moray (Gymnothorax mordax) — Muraenidae — 3
iNaturalist ((c) Alexandra Noyes, some rights reserved (CC BY-NC))
California moray (Gymnothorax mordax) — Muraenidae — 4
Wikimedia Commons — Stan Shebs (CC BY-SA 3.0)
California moray (Gymnothorax mordax) — Muraenidae — 5
Wikimedia Commons — NARCD (CC BY-SA 3.0)

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All data

Identification

English name
California moray verified
Scientific name
Gymnothorax mordax
Family
Muraenidae
Other names
California moray verified

Appearance

Size class
Extra large verified
Max length (cm)
152 verified
Average length (cm)
70 verified
Body shape
Snake-like sourced
Dominant colour
Brown
Pattern
Plain
Tail shape
Straight
Mouth position
Terminal
Lips
Thin
Barbels
No sourced
Dorsal fins
One continuous
Dorsal spines
No sourced

Habitat & distribution

Water type
Saltwater sourced
Substrate
Sand / mud bottom sourced
Min depth (m)
1 verified
Max depth (m)
40 verified
Natural range
Eastern Pacific, from California to Baja California.
Origin
Native sourced

Behaviour & biology

Diet
Carnivore sourced
Diet (detail)
Crustaceans, octopuses and small fishes sourced
Social behaviour
Solitary
Territorial
No
Activity
Nocturnal
Reproduction
Separate sexes sourced
Sexual dimorphism
No
Max. age (years)
30 verified
Seasonality
Present year-round in its habitat; no pronounced seasonality known.
Special features
Long-lived moray that protrudes from a crevice with only its head during the day; can bite hard. sourced

For anglers

Edibility
Commonly eaten sourced
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 sourced
First aid
Morays can inflict a deep, ragged bite with their sharp, rearward-pointing teeth that readily becomes infected. Do not provoke or feed the animal and do not put a hand into crevices; flush a bite thoroughly and seek medical help. sourced

Status & sources

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

Same genus Gymnothorax

More from the family Muraenidae

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