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Ansorge's stonebasher (Hippopotamyrus ansorgii) — Mormyridae

Ansorge's stonebasher

Hippopotamyrus ansorgii
Family: Mormyridae

The Ansorge's stonebasher (Hippopotamyrus ansorgii) is a freshwater fish of the family Mormyridae that grows up to 20 cm.

Length
20 cm
Water
Freshwater
Diet
Carnivore
Behaviour
Small groups
Body shape
Elongated (eel-like)
Substrate
Sand / mud bottom
Danger
Harmless
Range
Freshwater of the Congo basin in Central Africa.
Edibility
Rarely eaten

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Description

Hippopotamyrus ansorgii is an African elephantfish (Mormyridae) from fresh water of the Congo basin in Central Africa. The species has a streamlined, silvery-grey body with a blunt head and reaches about 20 cm. Like other mormyrids it has a weak electric organ and electroreceptors with which it orients itself in turbid water, locates prey and communicates with conspecifics. It feeds on insect larvae and small invertebrates on the bottom. Mormyrids are known for their relatively large brains and complex social behaviour based on electric signals. The species is of limited local fishery importance.

Frequently asked questions

How do you recognise the Ansorge's stonebasher?

The Ansorge's stonebasher has an elongate, eel-like body, is mainly silver-grey and shows a plain pattern. Weak electric organ for orientation and communication in turbid water.

Where does the Ansorge's stonebasher live?

The Ansorge's stonebasher lives in fresh water and is mostly found around sand or mud bottom. Freshwater of the Congo basin in Central Africa.

How big does the Ansorge's stonebasher get?

The Ansorge's stonebasher grows to a maximum of about 20 cm.

Is the Ansorge's stonebasher dangerous to humans?

No, the Ansorge's stonebasher is harmless to humans. This species is harmless to humans. No specific first aid is needed. Still handle the fish with care: mind the fin rays and the sharp edges of the gill cover, and rinse any scratch with clean water and cover it. For a dirty or deep wound check tetanus status.

Is the Ansorge's stonebasher edible?

The Ansorge's stonebasher is rarely eaten.

More photos

Ansorge's stonebasher (Hippopotamyrus ansorgii) — Mormyridae — 2
iNaturalist ((c) joe_cutler, some rights reserved (CC BY-NC))
Ansorge's stonebasher (Hippopotamyrus ansorgii) — Mormyridae — 3
iNaturalist ((c) Angus, some rights reserved (CC BY-NC))
Ansorge's stonebasher (Hippopotamyrus ansorgii) — Mormyridae — 4
Angus (CC BY-NC 4.0) via GBIF — iNaturalist
Ansorge's stonebasher (Hippopotamyrus ansorgii) — Mormyridae — 5
SAIAB (CC BY 4.0) via GBIF — SAIAB
Fin

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All data

Identification

English name
Ansorge's stonebasher sourced
Scientific name
Hippopotamyrus ansorgii
Family
Mormyridae
Other names
Slender stonebasher; Slender stone basher

Appearance

Size class
Medium
Max length (cm)
20.0 sourced
Body shape
Elongated (eel-like) sourced
Dominant colour
Silver / grey inferred
Pattern
Plain inferred
Tail shape
Forked inferred
Mouth position
Terminal inferred
Lips
Thin 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
Freshwater of the Congo basin in Central Africa. 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 for orientation and communication in turbid water. sourced

For anglers

Edibility
Rarely eaten sourced
Regulations source
FishBase ↗ inferred

Safety

Danger to humans
Harmless sourced
First aid
This species is harmless to humans. No specific first aid is needed. Still handle the fish with care: mind the fin rays and the sharp edges of the gill cover, and rinse any scratch with clean water and cover it. For a dirty or deep wound check tetanus status. verified

Status & sources

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

Same genus Hippopotamyrus

More from the family Mormyridae

Fin

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