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Grunting toadfish (Allenbatrachus grunniens) — Batrachoididae

Grunting toadfish

Allenbatrachus grunniens

The Grunting toadfish (Allenbatrachus grunniens) is a brackish-water fish of the family Batrachoididae that grows up to 30 cm.

Length
30 cm
Water
Brackish
Behaviour
Solitary
Activity
Nocturnal
Body shape
Elongated (eel-like)
Substrate
Sand / mud bottom
Danger
Venomous / poisonous
Range
Asia: Myanmar, Cambodia, Sri Lanka, India, Indonesia, Kuwait and others

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Description

The grunting toadfish is a toadfish (Batrachoididae) from coastal, brackish and fresh water of the Indo-West Pacific. The species grows to about 30 cm and has a stocky body with a broad, flattened head, a large mouth and skin flaps. As a bottom-dweller it shelters in holes, bank burrows and among roots and ambushes crustaceans, molluscs and small fish; it makes grunting sounds with its swim bladder. The dorsal and gill-cover spines carry venom and a sting is painful; handle with care.

Frequently asked questions

How do you recognise the Grunting toadfish?

The Grunting toadfish has an elongate, eel-like body and is mainly brown. Bears venomous spines or tissue; handle with great care.

Where does the Grunting toadfish live?

The Grunting toadfish lives in brackish water and is mostly found around sand or mud bottom. Asia: Myanmar, Cambodia, Sri Lanka, India, Indonesia, Kuwait and others

How big does the Grunting toadfish get?

The Grunting toadfish grows to a maximum of about 30 cm.

Is the Grunting toadfish dangerous to humans?

The Grunting toadfish is venomous — handle spines with care and seek medical help after a sting if needed. Do not touch or pick up; the fin spines carry venom. For a sting: immerse the wound in water as hot as can be tolerated (about 45 C, not scalding) for 30-90 minutes to break down the venom. For severe pain, swelling or breathing difficulty seek medical help and check tetanus status.

More photos

Grunting toadfish (Allenbatrachus grunniens) — Batrachoididae — 2
iNaturalist ((c) Erza Aulia Rachman, some rights reserved (CC BY-NC))
Grunting toadfish (Allenbatrachus grunniens) — Batrachoididae — 3
Murphy, Katherine, Reft, Abigail, Weigt, Lee (CC0 1.0) via GBIF — USNM
Grunting toadfish (Allenbatrachus grunniens) — Batrachoididae — 4
Wikimedia Commons — 5snake5 (CC0)
Grunting toadfish (Allenbatrachus grunniens) — Batrachoididae — 5
Wikimedia Commons — 5snake5 (CC0)
Fin

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All data

Identification

English name
Grunting toadfish sourced
Scientific name
Allenbatrachus grunniens
Family
Batrachoididae
Other names
Frog fish; Frogfish; Grunting toadfish; Toadfish verified

Appearance

Size class
Medium verified
Max length (cm)
30.0 verified
Body shape
Elongated (eel-like) sourced
Dominant colour
Brown sourced
Tail shape
Rounded inferred
Mouth position
Superior (upward) sourced
Dorsal spines
Yes sourced

Habitat & distribution

Water type
Brackish sourced
Substrate
Sand / mud bottom sourced
Natural range
Asia: Myanmar, Cambodia, Sri Lanka, India, Indonesia, Kuwait and others sourced
Origin
Native inferred

Behaviour & biology

Social behaviour
Solitary inferred
Territorial
No inferred
Activity
Nocturnal inferred
Reproduction
Separate sexes inferred
Sexual dimorphism
No inferred
Seasonality
Present year-round in its habitat; no pronounced seasonality known. inferred
Special features
Bears venomous spines or tissue; handle with great care. inferred

For anglers

Fishing method
Bottom fishing with natural bait (worm, shrimp or fish) on or just above the seabed. inferred
Regulations source
FishBase ↗ inferred

Safety

Danger to humans
Venomous / poisonous verified
First aid
Do not touch or pick up; the fin spines carry venom. For a sting: immerse the wound in water as hot as can be tolerated (about 45 C, not scalding) for 30-90 minutes to break down the venom. For severe pain, swelling or breathing difficulty seek medical help and check tetanus status. sourced

Status & sources

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

More from the family Batrachoididae

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