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Elephant Fish (Pollimyrus isidori) — Mormyridae

Elephant Fish

Pollimyrus isidori
Family: Mormyridae
LC · Least Concern

The Elephant Fish (Pollimyrus isidori) is a freshwater fish of the family Mormyridae that grows up to 10 cm.

Length
10.3 cm
Water
Freshwater
Diet
Omnivore
Behaviour
Small groups
Body shape
Torpedo-shaped
Substrate
Sand / mud bottom
Danger
Harmless
Range
Floodplains of the Sahel region in Africa.
Edibility
Not eaten

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Description

Pollimyrus isidori is a small African elephantfish (Mormyridae) from fresh water of the Sahel region, including the Nile and the swamps of the Sudd. The species has a stocky, silvery-grey body and reaches about 10 cm. It inhabits floodplain pools. Like other mormyrids it has a weak electric organ with which it orients itself in turbid water and communicates with conspecifics; males of the genus Pollimyrus are known for their complex courtship based on electric signals. It feeds on mud, plant debris and small invertebrates. Owing to its small size the species has no fishery value.

Frequently asked questions

How do you recognise the Elephant Fish?

The Elephant Fish has a torpedo-shaped body, is mainly silver-grey and shows a plain pattern. Weak electric organ; males with a complex courtship based on electric signals.

Where does the Elephant Fish live?

The Elephant Fish lives in fresh water and is mostly found around sand or mud bottom. Floodplains of the Sahel region in Africa.

How big does the Elephant Fish get?

The Elephant Fish grows to a maximum of about 10 cm.

Is the Elephant Fish dangerous to humans?

No, the Elephant Fish 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 Elephant Fish edible?

The Elephant Fish is not usually eaten.

More photos

Elephant Fish (Pollimyrus isidori) — Mormyridae — 2
SAIAB (CC BY 4.0) via GBIF — SAIAB
Elephant Fish (Pollimyrus isidori) — Mormyridae — 3
iNaturalist ((c) Dale Kindler, some rights reserved (CC BY-NC))
Elephant Fish (Pollimyrus isidori) — Mormyridae — 4
iNaturalist ((c) H.Grenier, some rights reserved (CC BY-NC))
Elephant Fish (Pollimyrus isidori) — Mormyridae — 5
iNaturalist ((c) Gina Walsh, some rights reserved (CC BY-NC))
Fin

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All data

Identification

English name
Elephant Fish verified
Scientific name
Pollimyrus isidori
Family
Mormyridae

Appearance

Size class
Small verified
Max length (cm)
10.3 verified
Body shape
Torpedo-shaped 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
Floodplains of the Sahel region in Africa. inferred
Origin
Native sourced

Behaviour & biology

Diet
Omnivore sourced
Diet (detail)
Mud, plant remains 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; males with a complex courtship based on electric signals. sourced

For anglers

Edibility
Not eaten sourced
Fishing method
Not a target species for angling; at most an incidental catch or usable as baitfish. inferred
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 Pollimyrus

More from the family Mormyridae

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