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Eastern bottlenose (Mormyrus longirostris) — Mormyridae

Eastern bottlenose

Mormyrus longirostris
Family: Mormyridae
LC · Least Concern

The Eastern bottlenose (Mormyrus longirostris) is a freshwater fish of the family Mormyridae that grows up to 75 cm.

Length
75 cm
Water
Freshwater
Diet
Omnivore
Behaviour
Small groups
Activity
Nocturnal
Body shape
Torpedo-shaped
Substrate
Sand / mud bottom
Danger
Harmless
Range
Eastern and southern Africa, in calm deep waters with soft muddy bottoms of rivers and lakes.
Edibility
Commonly eaten

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Description

The eastern bottlenose mormyrid is an African elephantfish (family Mormyridae) of eastern and southern Africa. The species grows to about 75 cm and has a fusiform, silvery-grey body with a long, bottlenose-like snout and a long dorsal fin. It favours quiet, deep waters with a soft muddy bottom and hides in caves and among weeds; it forms shoals. With a weak electric organ it probes the muddy bottom for insect larvae and small invertebrates, supplemented by plant matter. The species is harmless to humans and is of commercial value to local fisheries.

Frequently asked questions

How do you recognise the Eastern bottlenose?

The Eastern bottlenose has a torpedo-shaped body, is mainly silver-grey and shows a plain pattern. Long, bottlenose-like snout; scans the muddy bottom with a weak electric organ.

Where does the Eastern bottlenose live?

The Eastern bottlenose lives in fresh water and is mostly found around sand or mud bottom. Eastern and southern Africa, in calm deep waters with soft muddy bottoms of rivers and lakes.

How big does the Eastern bottlenose get?

The Eastern bottlenose grows to a maximum of about 75 cm.

Is the Eastern bottlenose dangerous to humans?

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

Is the Eastern bottlenose edible?

Yes, the Eastern bottlenose is commonly eaten.

More photos

Eastern bottlenose (Mormyrus longirostris) — Mormyridae — 2
R. Bills (CC BY 4.0) via GBIF — SAIAB
Eastern bottlenose (Mormyrus longirostris) — Mormyridae — 3
iNaturalist ((c) GLENN STOCKIL, some rights reserved (CC BY-NC))
Eastern bottlenose (Mormyrus longirostris) — Mormyridae — 4
iNaturalist ((c) Yasalde Massingue, some rights reserved (CC BY-NC))
Eastern bottlenose (Mormyrus longirostris) — Mormyridae — 5
iNaturalist ((c) Rob Palmer, some rights reserved (CC BY-NC-SA))
Fin

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All data

Identification

English name
Eastern bottlenose verified
Scientific name
Mormyrus longirostris
Family
Mormyridae
Other names
Eastern bottlenose; Eastern bottlenose mormyrid; Elephant-snout verified

Appearance

Size class
Large verified
Max length (cm)
75.0 verified
Body shape
Torpedo-shaped sourced
Dominant colour
Silver / grey inferred
Pattern
Plain inferred
Tail shape
Forked inferred
Mouth position
Inferior (downward) 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
Eastern and southern Africa, in calm deep waters with soft muddy bottoms of rivers and lakes. inferred
Origin
Native sourced

Behaviour & biology

Diet
Omnivore sourced
Diet (detail)
Insect larvae, small invertebrates and plant material sourced
Social behaviour
Small groups inferred
Territorial
No inferred
Activity
Nocturnal inferred
Reproduction
Separate sexes sourced
Sexual dimorphism
No inferred
Seasonality
Present year-round in its habitat; no pronounced seasonality known. inferred
Special features
Long, bottlenose-like snout; scans the muddy bottom with a weak electric organ. sourced

For anglers

Edibility
Commonly eaten sourced
Fishing method
Bottom fishing with natural bait in calm, deep waters. sourced
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 Mormyrus

More from the family Mormyridae

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