Home · Opistognathidae · Mottled jawfish
Mottled jawfish (Opistognathus maxillosus) — Opistognathidae

Mottled jawfish

Opistognathus maxillosus
LC · Least Concern

The Mottled jawfish (Opistognathus maxillosus) is a saltwater fish of the family Opistognathidae that grows up to 13 cm.

Length
13 cm
Water
Saltwater
Depth
1.0–8.0 m
Diet
Carnivore
Behaviour
Solitary
Body shape
Elongated (eel-like)
Substrate
Stone or rock
Danger
Harmless
Edibility
Not eaten

Description

The mottled jawfish is a jawfish of the family Opistognathidae from the western Atlantic and Caribbean. The species grows to about 13 cm and has a stocky body with a large head and a conspicuously large mouth. It inhabits a self-dug, often deep vertical burrow in sand and rubble bottoms, which it excavates with its mouth and reinforces with pebbles; when threatened it retreats into it in a flash. As a bottom searcher it picks small zooplankton and small invertebrates from the water and bottom. As a mouthbrooder the male broods the eggs in its mouth. The species is harmless to humans.

Frequently asked questions

How do you recognise the Mottled jawfish?

The Mottled jawfish has an elongate, eel-like body, is mainly brown and shows a marbled pattern.

Where does the Mottled jawfish live?

The Mottled jawfish lives in the sea (marine waters) and is mostly found around stony or rocky ground.

How big does the Mottled jawfish get?

The Mottled jawfish grows to a maximum of about 13 cm.

Is the Mottled jawfish dangerous to humans?

No, the Mottled jawfish is harmless to humans.

Is the Mottled jawfish edible?

The Mottled jawfish is not usually eaten.

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All data

Identification

Dutch name
Gevlekte kaakvis sourced
English name
Mottled jawfish verified
Scientific name
Opistognathus maxillosus
Family
Opistognathidae
Other names
Mottled jawfish; Mottled Jawfish verified

Appearance

Size class
Small verified
Max length (cm)
13.0 verified
Body shape
Elongated (eel-like) sourced
Dominant colour
Brown inferred
Pattern
Marbled 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)
1.0 verified
Max depth (m)
8.0 verified
Origin
Native sourced

Behaviour & biology

Diet
Carnivore sourced
Social behaviour
Solitary inferred
Territorial
Yes inferred
Reproduction
Separate sexes sourced
Sexual dimorphism
No inferred

For anglers

Edibility
Not eaten sourced
Fishing method
Geen doelsoort voor de hengelsport; hooguit incidentele vangst of bruikbaar als aasvisje. inferred
Regulations source
FishBase ↗ inferred

Safety

Danger to humans
Harmless sourced

Status & sources

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

Same genus Opistognathus

More from the family Opistognathidae

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