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Donny's elephantfish (Genyomyrus donnyi) — Mormyridae

Donny's elephantfish

Genyomyrus donnyi
Family: Mormyridae
LC · Least Concern

The Donny's elephantfish (Genyomyrus donnyi) is a freshwater fish of the family Mormyridae that grows up to 45 cm.

Length
45 cm
Water
Freshwater
Diet
Carnivore
Behaviour
Solitary
Activity
Nocturnal
Body shape
Elongated (eel-like)
Substrate
Sand / mud bottom
Danger
Harmless
Range
Widespread in the Congo basin in Central Africa, from the lower Congo basin to the Lualaba; tropical freshwater.
Edibility
Not eaten

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Description

Genyomyrus donnyi is an African elephantfish of the family Mormyridae, widespread in the Congo basin, from the lower Congo basin to the Lualaba, in Cameroon, the Central African Republic and both Congos. It grows to 45 centimetres and is a bottom dweller of tropical fresh water. Like all elephantfishes it generates weak electric fields to navigate turbid water, locate prey and communicate. It probably feeds on small bottom invertebrates. The fish has a single continuous spineless dorsal fin and is harmless to humans.

Frequently asked questions

How do you recognise the Donny's elephantfish?

The Donny's elephantfish has an elongate, eel-like body, is mainly silver-grey and shows a plain pattern. Elephantfish that uses weak electric fields to navigate and communicate in turbid water.

Where does the Donny's elephantfish live?

The Donny's elephantfish lives in fresh water and is mostly found around sand or mud bottom. Widespread in the Congo basin in Central Africa, from the lower Congo basin to the Lualaba; tropical freshwater.

How big does the Donny's elephantfish get?

The Donny's elephantfish grows to a maximum of about 45 cm.

Is the Donny's elephantfish dangerous to humans?

No, the Donny's elephantfish is harmless to humans. None required: this species is harmless to humans.

Is the Donny's elephantfish edible?

The Donny's elephantfish is not usually eaten.

More photos

Donny's elephantfish (Genyomyrus donnyi) — Mormyridae — 2
iNaturalist ((c) Fish and Benthos survey Chinko, some rights reserved (CC BY-NC))
Donny's elephantfish (Genyomyrus donnyi) — Mormyridae — 3
iNaturalist ((c) Fish and Benthos survey Chinko, some rights reserved (CC BY-NC))
Donny's elephantfish (Genyomyrus donnyi) — Mormyridae — 4
Wikimedia Commons — J. Green (Public domain)
Donny's elephantfish (Genyomyrus donnyi) — Mormyridae — 5
iNaturalist ((c) Fish and Benthos survey Chinko, some rights reserved (CC BY-NC))
Fin

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All data

Identification

English name
Donny's elephantfish sourced
Scientific name
Genyomyrus donnyi
Family
Mormyridae

Appearance

Size class
Large verified
Max length (cm)
45.0 verified
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 verified
Dorsal spines
No verified

Habitat & distribution

Water type
Freshwater sourced
Substrate
Sand / mud bottom sourced
Natural range
Widespread in the Congo basin in Central Africa, from the lower Congo basin to the Lualaba; tropical freshwater. verified
Origin
Native verified

Behaviour & biology

Diet
Carnivore inferred
Diet (detail)
Small bottom-dwelling invertebrates, mainly insect larvae. inferred
Social behaviour
Solitary inferred
Territorial
No inferred
Activity
Nocturnal sourced
Reproduction
Separate sexes sourced
Sexual dimorphism
No inferred
Seasonality
Bottom-dweller of tropical freshwater; reproduction probably coincides with the rainy season. inferred
Special features
Elephantfish that uses weak electric fields to navigate and communicate in turbid water. sourced

For anglers

Edibility
Not eaten inferred
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. verified

Status & sources

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

More from the family Mormyridae

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