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Banded knifefish (Gymnotus cylindricus) — Gymnotidae

Banded knifefish

Gymnotus cylindricus
Family: Gymnotidae
LC · Least Concern

The Banded knifefish (Gymnotus cylindricus) is a freshwater fish of the family Gymnotidae that grows up to 24 cm.

Length
23.9 cm
Water
Freshwater
Diet
Carnivore
Behaviour
Solitary
Body shape
Elongated (eel-like)
Substrate
Mixed bottom
Danger
Harmless
Edibility
Rarely eaten

Description

The banded knifefish is a knifefish (Gymnotidae) from Central America. The species has an elongate, round body with oblique dark bands and a long, continuous anal fin with which it swims forwards and backwards in undulating movements. It generates a weak electric field to navigate in turbid water and find prey. Nocturnally it searches for insect larvae, small crustaceans and small fishes. The species is harmless to humans.

Frequently asked questions

How do you recognise the Banded knifefish?

The Banded knifefish has an elongate, eel-like body, is mainly brown and shows a vertical stripes pattern.

Where does the Banded knifefish live?

The Banded knifefish lives in fresh water and is mostly found around mixed bottom.

How big does the Banded knifefish get?

The Banded knifefish grows to a maximum of about 24 cm. On average the species is around 14 cm.

Is the Banded knifefish dangerous to humans?

No, the Banded knifefish is harmless to humans.

Is the Banded knifefish edible?

The Banded knifefish is rarely eaten.

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All data

Identification

Dutch name
Gebande mesvis sourced
English name
Banded knifefish sourced
Scientific name
Gymnotus cylindricus
Family
Gymnotidae

Appearance

Max length (cm)
23.9 verified
Average length (cm)
14.3 sourced
Body shape
Elongated (eel-like) sourced
Dominant colour
Brown inferred
Pattern
Vertical bars inferred
Tail shape
Rounded inferred
Mouth position
Terminal inferred
Lips
Thick / fleshy 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
Solitary inferred
Territorial
No inferred
Reproduction
Separate sexes sourced
Sexual dimorphism
No inferred

For anglers

Edibility
Rarely eaten sourced
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 Gymnotus

More from the family Gymnotidae

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