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Nakedhead eeltail catfish (Euristhmus nudiceps) — Plotosidae

Nakedhead eeltail catfish

Euristhmus nudiceps
Family: Plotosidae

The Nakedhead eeltail catfish (Euristhmus nudiceps) is a fish that lives in both fresh and salt water of the family Plotosidae that grows up to 33 cm.

Length
33 cm
Water
Euryhaline
Activity
Nocturnal
Body shape
Elongated (eel-like)
Substrate
Sand / mud bottom
Danger
Venomous / poisonous
Range
Oceania: Australia, Cambodia, Papua New Guinea

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Description

The nakedhead eeltail catfish is an eeltail catfish (Plotosidae) from turbid coastal and estuarine water of northern Australia. The species grows to about 30 cm and has an eel-like, dark body in which the second dorsal, tail and anal fins are fused into a long border, with barbels around the mouth. As a bottom-dweller it searches over sand and mud for worms, crustaceans and molluscs. The dorsal and pectoral spines are venomous and can give a painful puncture wound.

Frequently asked questions

How do you recognise the Nakedhead eeltail catfish?

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

Where does the Nakedhead eeltail catfish live?

The Nakedhead eeltail catfish lives in both fresh and salt water and is mostly found around sand or mud bottom. Oceania: Australia, Cambodia, Papua New Guinea

How big does the Nakedhead eeltail catfish get?

The Nakedhead eeltail catfish grows to a maximum of about 33 cm.

Is the Nakedhead eeltail catfish dangerous to humans?

The Nakedhead eeltail catfish is venomous — handle spines with care and seek medical help after a sting if needed. For a sting from a fin spine: rinse the wound, remove any visible spine fragments and immerse the part for 30-90 minutes in water as hot as can be tolerated (about 45 C) to break down the venom. The pain can be severe. For marked swelling, a retained spine or signs of infection seek medical care and check tetanus status.

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All data

Identification

English name
Nakedhead eeltail catfish sourced
Scientific name
Euristhmus nudiceps
Family
Plotosidae
Other names
Naked-headed catfish; Nettlefish; Nakedhead catfish verified

Appearance

Size class
Medium verified
Max length (cm)
33.0 verified
Body shape
Elongated (eel-like) sourced
Dominant colour
Brown sourced
Tail shape
Rounded inferred
Barbels
Yes sourced
Dorsal spines
Yes sourced

Habitat & distribution

Water type
Euryhaline sourced
Substrate
Sand / mud bottom sourced
Natural range
Oceania: Australia, Cambodia, Papua New Guinea sourced
Origin
Native inferred

Behaviour & biology

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
For a sting from a fin spine: rinse the wound, remove any visible spine fragments and immerse the part for 30-90 minutes in water as hot as can be tolerated (about 45 C) to break down the venom. The pain can be severe. For marked swelling, a retained spine or signs of infection seek medical care and check tetanus status. sourced

Status & sources

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

Same genus Euristhmus

More from the family Plotosidae

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