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Dwarf whale catfish (Cetopsidium minutum) — Cetopsidae

Dwarf whale catfish

Cetopsidium minutum
Family: Cetopsidae

The Dwarf whale catfish (Cetopsidium minutum) is a freshwater fish of the family Cetopsidae that grows up to 5 cm.

Length
4.9 cm
Water
Freshwater
Activity
Nocturnal
Body shape
Elongated (eel-like)
Substrate
Sand / mud bottom
Danger
Harmless

Description

The dwarf whale catfish is a tiny whale catfish (Cetopsidae) from slow-flowing fresh water of the Amazon and Orinoco basin in South America. The species grows to only about 3 cm and has a stocky, scaleless, smooth, greyish body with small eyes and short barbels. As a nocturnal bottom-dweller it roots through sand and leaf litter and snaps at small invertebrates and detritus. The fish is harmless to humans.

Frequently asked questions

How do you recognise the Dwarf whale catfish?

The Dwarf whale catfish has an elongate, eel-like body and is mainly silver-grey.

Where does the Dwarf whale catfish live?

The Dwarf whale catfish lives in fresh water and is mostly found around sand or mud bottom.

How big does the Dwarf whale catfish get?

The Dwarf whale catfish grows to a maximum of about 5 cm.

Is the Dwarf whale catfish dangerous to humans?

No, the Dwarf whale catfish is harmless to humans.

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All data

Identification

Dutch name
Dwerg-walvismeerval sourced
English name
Dwarf whale catfish sourced
Scientific name
Cetopsidium minutum
Family
Cetopsidae

Appearance

Size class
Small verified
Max length (cm)
4.9 verified
Body shape
Elongated (eel-like) sourced
Dominant colour
Silver / grey sourced
Tail shape
Forked inferred
Barbels
Yes sourced

Habitat & distribution

Water type
Freshwater sourced
Substrate
Sand / mud bottom sourced
Origin
Native inferred

Behaviour & biology

Territorial
No inferred
Activity
Nocturnal sourced
Reproduction
Separate sexes inferred
Sexual dimorphism
No inferred

For anglers

Fishing method
Klein van stuk en nauwelijks een hengelsportdoel; wordt vooral incidenteel of als aasvis gevangen. inferred
Regulations source
FishBase ↗ inferred

Safety

Danger to humans
Harmless verified

Status & sources

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

Same genus Cetopsidium

More from the family Cetopsidae

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