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Scale-eating cichlid (Perissodus microlepis) — Cichlidae

Scale-eating cichlid

Perissodus microlepis
Family: Cichlidae
LC · Least Concern

The Scale-eating cichlid (Perissodus microlepis) is a freshwater fish of the family Cichlidae that grows up to 11 cm.

Length
11 cm
Water
Freshwater
Diet
Carnivore
Body shape
Torpedo-shaped
Substrate
Sand / mud bottom
Danger
Harmless
Range
Endemic to Lake Tanganyika in East Africa.
Edibility
Commonly eaten

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Description

Perissodus microlepis is a cichlid endemic to Lake Tanganyika in East Africa. The species is famous for its specialised diet: it is a scale-eater (lepidophage) that bites scales from the flanks of other fishes. Its mouth is asymmetrically directed to the left or right, a celebrated example of evolutionarily balanced polymorphism. The fish reaches about 11 cm, has a streamlined body and preys mainly on fishes that are inattentive or that graze the algal layer. Like many Tanganyika cichlids the species is a mouthbrooder.

Frequently asked questions

How do you recognise the Scale-eating cichlid?

The Scale-eating cichlid has a torpedo-shaped body and shows a vertical stripes pattern. Scale-eater with an asymmetrical, left- or right-facing mouth (balanced polymorphism); mouthbrooder.

Where does the Scale-eating cichlid live?

The Scale-eating cichlid lives in fresh water and is mostly found around sand or mud bottom. Endemic to Lake Tanganyika in East Africa.

How big does the Scale-eating cichlid get?

The Scale-eating cichlid grows to a maximum of about 11 cm.

Is the Scale-eating cichlid dangerous to humans?

No, the Scale-eating cichlid 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 Scale-eating cichlid edible?

Yes, the Scale-eating cichlid is commonly eaten.

More photos

Scale-eating cichlid (Perissodus microlepis) — Cichlidae — 2
SAIAB (CC BY 4.0) via GBIF — SAIAB
Scale-eating cichlid (Perissodus microlepis) — Cichlidae — 3
SAIAB (CC BY 4.0) via GBIF — SAIAB
Scale-eating cichlid (Perissodus microlepis) — Cichlidae — 4
Wikimedia Commons — Henrik Kusche (CC BY 3.0)
Scale-eating cichlid (Perissodus microlepis) — Cichlidae — 5
iNaturalist ((c) koblmuel, some rights reserved (CC BY-NC))
Fin

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All data

Identification

English name
Scale-eating cichlid sourced
Scientific name
Perissodus microlepis
Family
Cichlidae

Appearance

Size class
Small verified
Max length (cm)
11.0 verified
Body shape
Torpedo-shaped sourced
Pattern
Vertical bars inferred
Tail shape
Straight inferred
Mouth position
Terminal inferred
Lips
Thin inferred
Barbels
No sourced
Dorsal fins
One continuous inferred
Dorsal spines
Yes sourced

Habitat & distribution

Water type
Freshwater sourced
Substrate
Sand / mud bottom sourced
Natural range
Endemic to Lake Tanganyika in East Africa. inferred
Origin
Native sourced

Behaviour & biology

Diet
Carnivore sourced
Diet (detail)
Scales of other fishes (lepidophagy) sourced
Territorial
Yes inferred
Reproduction
Separate sexes sourced
Sexual dimorphism
Yes inferred
Seasonality
Present year-round in its habitat; no pronounced seasonality known. inferred
Special features
Scale-eater with an asymmetrical, left- or right-facing mouth (balanced polymorphism); mouthbrooder. sourced

For anglers

Edibility
Commonly eaten sourced
Fishing method
Small in size and barely an angling target; mostly caught incidentally or 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

More from the family Cichlidae

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