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Frogfish (Histrio histrio) — Antennariidae

Frogfish

Histrio histrio
Family: Antennariidae
LC · Least Concern

The Frogfish (Histrio histrio) is a saltwater fish of the family Antennariidae that grows up to 20 cm.

Length
20 cm
Water
Saltwater
Depth
0.0–50.0 m
Diet
Carnivore
Behaviour
Solitary
Activity
Diurnal
Body shape
Flat / disc-shaped
Substrate
Stone or rock
Danger
Venomous / poisonous
Range
Worldwide in warm seas, associated with floating Sargassum: western and eastern Atlantic Ocean, Indian Ocean and western Pacific Ocean.
Edibility
Not eaten

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Description

The sargassumfish is a small, bizarrely camouflaged frogfish of the family Antennariidae reaching about 20 cm. The stout, globose body is covered with numerous skin flaps and appendages that let the fish blend perfectly with drifting Sargassum weed, in which the species spends its whole life. With its leg-like pectoral and pelvic fins it 'walks' through the weed, and with a short lure above the mouth it attracts prey. The sargassumfish is a voracious, solitary hunter that takes fish and shrimp, sometimes larger than itself. It occurs worldwide in warm seas and is not eaten, partly because of possible ciguatera.

Frequently asked questions

How do you recognise the Frogfish?

The Frogfish has a flattened, disc-shaped body, is mainly yellow-gold and shows a marbled pattern. Bizarrely camouflaged anglerfish among drifting Sargassum weed; uses skin flaps as camouflage, 'walks' on leg-like pectoral fins and lures prey with a short rod. Note: in tropical areas this species can cause ciguatera poisoning when eaten; large specimens of coral reef predators can accumulate the toxin. Eat with caution or avoid in risk areas.

Where does the Frogfish live?

The Frogfish lives in the sea (marine waters) and is mostly found around stony or rocky ground. Worldwide in warm seas, associated with floating Sargassum: western and eastern Atlantic Ocean, Indian Ocean and western Pacific Ocean.

How big does the Frogfish get?

The Frogfish grows to a maximum of about 20 cm.

Is the Frogfish dangerous to humans?

The Frogfish is venomous — handle spines with care and seek medical help after a sting if needed. Harmless to handle, but may cause ciguatera poisoning if eaten; seek medical help if symptoms such as nausea or tingling occur.

Is the Frogfish edible?

The Frogfish is not usually eaten.

More photos

Frogfish (Histrio histrio) — Antennariidae — 2
Wikimedia Commons — SEFSC Pascagoula Laboratory; Collection of Brandi Noble, NOAA/NMFS/SEFSC. (Public domain)
Frogfish (Histrio histrio) — Antennariidae — 3
Wikimedia Commons — Jean-Marie Gradot (CC BY-SA 4.0)
Frogfish (Histrio histrio) — Antennariidae — 4
Wikimedia Commons — NasserHalaweh (CC BY-SA 4.0)
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All data

Identification

English name
Frogfish verified
Scientific name
Histrio histrio
Family
Antennariidae
Other names
Marbled angler; Mouse fish; Sargassum anglerfish; Sargassumfish; Sargassum fish; Sargassum frogfish verified

Appearance

Size class
Medium verified
Max length (cm)
20.0 verified
Body shape
Flat / disc-shaped sourced
Dominant colour
Yellow / gold sourced
Pattern
Marbled sourced
Tail shape
Rounded sourced
Mouth position
Superior (upward) inferred
Lips
Thin inferred
Barbels
No verified
Dorsal fins
Two separate sourced
Dorsal spines
Yes verified

Habitat & distribution

Water type
Saltwater sourced
Substrate
Stone or rock sourced
Min depth (m)
0.0 verified
Max depth (m)
50.0 verified
Natural range
Worldwide in warm seas, associated with floating Sargassum: western and eastern Atlantic Ocean, Indian Ocean and western Pacific Ocean. verified
Origin
Native verified

Behaviour & biology

Diet
Carnivore verified
Diet (detail)
Small fishes, crustaceans and invertebrates inferred
Social behaviour
Solitary verified
Territorial
No verified
Activity
Diurnal sourced
Reproduction
Separate sexes verified
Sexual dimorphism
No verified
Seasonality
Oviparous; spawning pairs rise to the surface and deposit a floating jelly raft of eggs. sourced
Special features
Bizarrely camouflaged anglerfish among drifting Sargassum weed; uses skin flaps as camouflage, 'walks' on leg-like pectoral fins and lures prey with a short rod. Note: in tropical areas this species can cause ciguatera poisoning when eaten; large specimens of coral reef predators can accumulate the toxin. Eat with caution or avoid in risk areas. verified

For anglers

Edibility
Not eaten verified
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
Venomous / poisonous sourced
First aid
Harmless to handle, but may cause ciguatera poisoning if eaten; seek medical help if symptoms such as nausea or tingling occur. sourced

Status & sources

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

More from the family Antennariidae

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