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Longanal stonebasher (Brienomyrus longianalis) — Mormyridae

Longanal stonebasher

Brienomyrus longianalis
Family: Mormyridae
LC · Least Concern

The Longanal stonebasher (Brienomyrus longianalis) is a freshwater fish of the family Mormyridae that grows up to 16 cm.

Length
16 cm
Water
Freshwater
Diet
Carnivore
Behaviour
Small groups
Body shape
Torpedo-shaped
Substrate
Mixed bottom
Danger
Harmless
Edibility
Rarely eaten

Description

The longanal stonebasher is an African elephantfish of the family Mormyridae from West Africa. The species grows to about 16 cm and has a streamlined, dark body with a conspicuously long anal fin, to which the name refers. Like other elephantfishes it generates weak electric fields to orient itself in turbid water, find prey and communicate with conspecifics; different discharge patterns aid this. As a bottom dweller it feeds on insect larvae and small invertebrates. Elephantfishes are known for their relatively large brains. The species is harmless to humans.

Frequently asked questions

How do you recognise the Longanal stonebasher?

The Longanal stonebasher has a torpedo-shaped body, is mainly silver-grey and shows a plain pattern.

Where does the Longanal stonebasher live?

The Longanal stonebasher lives in fresh water and is mostly found around mixed bottom.

How big does the Longanal stonebasher get?

The Longanal stonebasher grows to a maximum of about 16 cm.

Is the Longanal stonebasher dangerous to humans?

No, the Longanal stonebasher is harmless to humans.

Is the Longanal stonebasher edible?

The Longanal stonebasher is rarely eaten.

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All data

Identification

Dutch name
Langaars-olifantsvis sourced
English name
Longanal stonebasher sourced
Scientific name
Brienomyrus longianalis
Family
Mormyridae

Appearance

Size class
Medium verified
Max length (cm)
16.0 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
Mixed bottom sourced
Origin
Native sourced

Behaviour & biology

Diet
Carnivore sourced
Social behaviour
Small groups inferred
Territorial
No inferred
Reproduction
Separate sexes sourced
Sexual dimorphism
No inferred

For anglers

Edibility
Rarely eaten sourced
Fishing method
Bodemvissen met natuurlijk aas (worm, garnaal of vis) op of vlak boven de bodem. inferred
Regulations source
FishBase ↗ inferred

Safety

Danger to humans
Harmless sourced

Status & sources

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

Same genus Brienomyrus

More from the family Mormyridae

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