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Crocodile fish (Mesoborus crocodilus) — Distichodontidae

Crocodile fish

Mesoborus crocodilus
LC · Least Concern

The Crocodile fish (Mesoborus crocodilus) is a freshwater fish of the family Distichodontidae that grows up to 25 cm.

Length
25 cm
Water
Freshwater
Diet
Carnivore
Behaviour
Schooling
Activity
Diurnal
Body shape
Elongated (eel-like)
Substrate
Open water
Danger
Harmless
Edibility
Not eaten

Description

The crocodile fish is a slender African characin of the family Distichodontidae reaching about 25 cm. The silvery, elongate body has long, toothed jaws - hence the name 'crocodile fish' - and an adipose fin. The species comes from the Congo basin in Central Africa and lives in schools in clear, flowing rivers and creeks. Notable is its feeding behaviour: it specialises in nipping scales and fin tips off other fish, supplemented with insects and small invertebrates - a lifestyle found in only a few fishes. In the rainy season it spawns. Because of this unusual behaviour it is of interest to biologists, but in the aquarium hobby it is difficult owing to its fin-eating.

Frequently asked questions

How do you recognise the Crocodile fish?

The Crocodile fish has an elongate, eel-like body, is mainly silver-grey and shows a horizontal stripes pattern.

Where does the Crocodile fish live?

The Crocodile fish lives in fresh water and is mostly found around open water.

How big does the Crocodile fish get?

The Crocodile fish grows to a maximum of about 25 cm.

Is the Crocodile fish dangerous to humans?

No, the Crocodile fish is harmless to humans.

Is the Crocodile fish edible?

The Crocodile fish is not usually eaten.

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All data

Identification

Dutch name
Krokodil-bijtzalm inferred
English name
Crocodile fish verified
Scientific name
Mesoborus crocodilus
Family
Distichodontidae

Appearance

Size class
Medium verified
Max length (cm)
25.0 verified
Body shape
Elongated (eel-like) sourced
Dominant colour
Silver / grey sourced
Pattern
Horizontal stripes sourced
Tail shape
Forked inferred
Mouth position
Terminal inferred
Lips
Thick / fleshy inferred
Barbels
No verified
Dorsal fins
One continuous sourced
Dorsal spines
No verified

Habitat & distribution

Water type
Freshwater verified
Substrate
Open water verified
Origin
Native verified

Behaviour & biology

Diet
Carnivore verified
Social behaviour
Schooling verified
Territorial
No verified
Activity
Diurnal inferred
Reproduction
Separate sexes verified
Sexual dimorphism
No verified

For anglers

Edibility
Not eaten verified
Fishing method
Sportvissen met kunstaas of (dood/levend) aasvis door te trollen, te werpen of drijvend te vissen in open water. inferred
Regulations source
FishBase ↗ inferred

Safety

Danger to humans
Harmless verified

Status & sources

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

More from the family Distichodontidae

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