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Cloudy dwarf bagrid (Nanobagrus nebulosus) — Bagridae

Cloudy dwarf bagrid

Nanobagrus nebulosus
Family: Bagridae

The Cloudy dwarf bagrid (Nanobagrus nebulosus) is a freshwater fish of the family Bagridae that grows up to 4 cm.

Length
3.5 cm
Water
Freshwater
Diet
Carnivore
Activity
Nocturnal
Body shape
Elongated (eel-like)
Substrate
Sand / mud bottom
Danger
Venomous / poisonous
Range
Asia: Malaysia

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Description

The Cloudy dwarf bagrid is a bagrid catfish (Bagridae) from fresh water of Sundaland in Southeast Asia. The species has a slender to sturdy, scaleless, brown-grey body with four pairs of barbels, an adipose fin and a long anal fin. As a nocturnal bottom-dweller it searches over sand and mud of rivers and lakes for insect larvae, small crustaceans, molluscs and small fish. The stout, serrated pectoral and dorsal spines are venomous and can give a painful puncture wound.

Frequently asked questions

How do you recognise the Cloudy dwarf bagrid?

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

Where does the Cloudy dwarf bagrid live?

The Cloudy dwarf bagrid lives in fresh water and is mostly found around sand or mud bottom. Asia: Malaysia

How big does the Cloudy dwarf bagrid get?

The Cloudy dwarf bagrid grows to a maximum of about 4 cm.

Is the Cloudy dwarf bagrid dangerous to humans?

The Cloudy dwarf bagrid 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
Cloudy dwarf bagrid sourced
Scientific name
Nanobagrus nebulosus
Family
Bagridae

Appearance

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

Habitat & distribution

Water type
Freshwater sourced
Substrate
Sand / mud bottom sourced
Natural range
Asia: Malaysia sourced
Origin
Native inferred

Behaviour & biology

Diet
Carnivore inferred
Diet (detail)
Small fishes, crustaceans and invertebrates inferred
Territorial
No inferred
Activity
Nocturnal sourced
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
Small in size and barely an angling target; mostly caught incidentally or as baitfish. 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

More from the family Bagridae

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