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Shortfin catfish (Neosilurus brevidorsalis) — Plotosidae

Shortfin catfish

Neosilurus brevidorsalis
Family: Plotosidae
LC · Least Concern

The Shortfin catfish (Neosilurus brevidorsalis) is a freshwater fish of the family Plotosidae that grows up to 20 cm.

Length
20 cm
Water
Freshwater
Depth
0–? m
Diet
Carnivore
Behaviour
Small groups
Activity
Nocturnal
Body shape
Elongated (eel-like)
Substrate
Sand / mud bottom
Danger
Venomous / poisonous
Range
Australia and New Guinea
Edibility
Rarely eaten

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Description

The shortfin tandan is an eeltail catfish from northern Australia and central-southern New Guinea. The species grows to about 20 cm and has an elongate body in which the dorsal, caudal and anal fins are fused into a continuous fin margin, characteristic of the eeltail catfishes; barbels surround the mouth. It lives on the bottom of warm, clear, flowing streams, lagoons and swamps and eats insects, prawns, molluscs and small crayfish. The pectoral and dorsal fin spines are venomous and serrated and can give a very painful sting. The IUCN assesses the species as Least Concern (LC).

Frequently asked questions

How do you recognise the Shortfin catfish?

The Shortfin catfish has an elongate, eel-like body, is mainly brown and shows a plain pattern. Dorsal, caudal and anal fin fused into a continuous margin; venomous serrated fin spines

Where does the Shortfin catfish live?

The Shortfin catfish lives in fresh water and is mostly found around sand or mud bottom. Australia and New Guinea

How big does the Shortfin catfish get?

The Shortfin catfish grows to a maximum of about 20 cm. On average the species is around 15 cm.

Is the Shortfin catfish dangerous to humans?

The Shortfin catfish is venomous — handle spines with care and seek medical help after a sting if needed. After a fin-spine sting, immerse the affected part in hot water (about 45 degrees) for 30-90 minutes to break down the venom; clean the wound, check for retained spine fragments and seek medical help for severe pain or swelling.

Is the Shortfin catfish edible?

The Shortfin catfish is rarely eaten.

More photos

Shortfin catfish (Neosilurus brevidorsalis) — Plotosidae — 2
Mark Allen (CC0 1.0) via GBIF — NHMUK
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All data

Identification

English name
Shortfin catfish verified
Scientific name
Neosilurus brevidorsalis
Family
Plotosidae
Other names
Shortfin tandan; Short-finned catfish; Short-finned tandan verified

Appearance

Size class
Medium verified
Max length (cm)
20.0 verified
Average length (cm)
15.0 verified
Body shape
Elongated (eel-like) sourced
Dominant colour
Brown inferred
Pattern
Plain sourced
Tail shape
Rounded inferred
Mouth position
Terminal sourced
Lips
Thin sourced
Barbels
Yes sourced
Dorsal fins
One continuous sourced
Dorsal spines
Yes sourced

Habitat & distribution

Water type
Freshwater sourced
Substrate
Sand / mud bottom sourced
Min depth (m)
0 sourced
Natural range
Australia and New Guinea verified
Origin
Native verified

Behaviour & biology

Diet
Carnivore sourced
Diet (detail)
Insects, shrimps, molluscs and small crayfish inferred
Social behaviour
Small groups inferred
Territorial
No sourced
Activity
Nocturnal sourced
Reproduction
Separate sexes sourced
Sexual dimorphism
No sourced
Seasonality
Bottom-dweller of flowing streams; present year-round. sourced
Special features
Dorsal, caudal and anal fin fused into a continuous margin; venomous serrated fin spines sourced

For anglers

Edibility
Rarely eaten sourced
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 sourced
First aid
After a fin-spine sting, immerse the affected part in hot water (about 45 degrees) for 30-90 minutes to break down the venom; clean the wound, check for retained spine fragments and seek medical help for severe pain or swelling. sourced

Status & sources

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

Same genus Neosilurus

More from the family Plotosidae

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