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Trunkfish (Hippopotamyrus pictus) — Mormyridae

Trunkfish

Hippopotamyrus pictus
Family: Mormyridae
LC · Least Concern

The Trunkfish (Hippopotamyrus pictus) is a freshwater fish of the family Mormyridae that grows up to 31 cm.

Length
30.5 cm
Water
Freshwater
Diet
Carnivore
Behaviour
Small groups
Body shape
Torpedo-shaped
Substrate
Sand / mud bottom
Danger
Harmless
Range
West Africa and the Sahelo-Sudanese basins; rivers of the Niger, Benue, Chad, Volta and the White Nile.
Edibility
Rarely eaten

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Description

The painted stonebasher is an African elephantfish of the family Mormyridae from West Africa and the Sahelo-Sudanese basins. The species grows to about 30 cm and has a streamlined, dark body with a blunt snout. Like other elephantfishes it generates weak electric fields to orient itself in turbid water, find prey and communicate with conspecifics; each species has its own discharge pattern. As a bottom dweller it feeds on insect larvae and small invertebrates. Elephantfishes are known for their relatively large brains. The species is eaten locally and is harmless to humans.

Frequently asked questions

How do you recognise the Trunkfish?

The Trunkfish has a torpedo-shaped body, is mainly silver-grey and shows a plain pattern. Weak electric organ with a species-specific discharge pattern for orientation and communication.

Where does the Trunkfish live?

The Trunkfish lives in fresh water and is mostly found around sand or mud bottom. West Africa and the Sahelo-Sudanese basins; rivers of the Niger, Benue, Chad, Volta and the White Nile.

How big does the Trunkfish get?

The Trunkfish grows to a maximum of about 31 cm.

Is the Trunkfish dangerous to humans?

No, the Trunkfish is harmless to humans. None required: this species is harmless to humans.

Is the Trunkfish edible?

The Trunkfish is rarely eaten.

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All data

Identification

English name
Trunkfish verified
Scientific name
Hippopotamyrus pictus
Family
Mormyridae

Appearance

Size class
Medium verified
Max length (cm)
30.5 verified
Body shape
Torpedo-shaped sourced
Dominant colour
Silver / grey inferred
Pattern
Plain inferred
Tail shape
Forked inferred
Mouth position
Terminal inferred
Lips
Thick / fleshy inferred
Barbels
No sourced
Dorsal fins
One continuous inferred
Dorsal spines
No sourced

Habitat & distribution

Water type
Freshwater sourced
Substrate
Sand / mud bottom sourced
Natural range
West Africa and the Sahelo-Sudanese basins; rivers of the Niger, Benue, Chad, Volta and the White Nile. inferred
Origin
Native sourced

Behaviour & biology

Diet
Carnivore sourced
Diet (detail)
Insect larvae and small invertebrates sourced
Social behaviour
Small groups inferred
Territorial
No inferred
Reproduction
Separate sexes sourced
Sexual dimorphism
No inferred
Seasonality
Present year-round in its habitat; no pronounced seasonality known. inferred
Special features
Weak electric organ with a species-specific discharge pattern for orientation and communication. 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
Harmless sourced
First aid
None required: this species is harmless to humans. sourced

Status & sources

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

Same genus Hippopotamyrus

More from the family Mormyridae

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