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Haplochromis square blotch (Ctenopharynx intermedius) — Cichlidae

Haplochromis square blotch

Ctenopharynx intermedius
Family: Cichlidae
LC · Least Concern

The Haplochromis square blotch (Ctenopharynx intermedius) is a freshwater fish of the family Cichlidae that grows up to 21 cm.

Length
21 cm
Water
Freshwater
Depth
3.0–60.0 m
Diet
Carnivore
Behaviour
Small groups
Body shape
Torpedo-shaped
Substrate
Mixed bottom
Danger
Harmless
Range
Endemic to Lake Malawi in East Africa; rock, transition and sand zones.
Edibility
Rarely eaten

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Description

The intermediate ctenopharynx is a cichlid endemic to Lake Malawi in East Africa. The species grows to about 20 cm and has an elongate body with numerous small, comb-like throat teeth with which it sifts food from the sediment. It occurs in sediment-rich parts of the rocky zone, the intermediate zone, over sand and in open water. On the bottom it forages on small invertebrates from the silt. It is a maternal mouthbrooder. The species is popular with aquarists and is harmless to humans.

Frequently asked questions

How do you recognise the Haplochromis square blotch?

The Haplochromis square blotch has a torpedo-shaped body, is mainly silver-grey and shows a vertical stripes pattern. Numerous comb-shaped pharyngeal teeth to sieve food from silt; maternal mouthbrooder.

Where does the Haplochromis square blotch live?

The Haplochromis square blotch lives in fresh water and is mostly found around mixed bottom. Endemic to Lake Malawi in East Africa; rock, transition and sand zones.

How big does the Haplochromis square blotch get?

The Haplochromis square blotch grows to a maximum of about 21 cm.

Is the Haplochromis square blotch dangerous to humans?

No, the Haplochromis square blotch is harmless to humans. None required: this species is harmless to humans.

Is the Haplochromis square blotch edible?

The Haplochromis square blotch is rarely eaten.

More photos

Haplochromis square blotch (Ctenopharynx intermedius) — Cichlidae — 2
© President and Fellows of Harvard College (CC BY-NC 4.0) via GBIF — MCZ
Haplochromis square blotch (Ctenopharynx intermedius) — Cichlidae — 3
Wikimedia Commons — Boulenger, George Albert, 1858-1937 (Public domain)
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All data

Identification

English name
Haplochromis square blotch verified
Scientific name
Ctenopharynx intermedius
Family
Cichlidae

Appearance

Size class
Medium verified
Max length (cm)
21.0 verified
Body shape
Torpedo-shaped sourced
Dominant colour
Silver / grey inferred
Pattern
Vertical bars inferred
Tail shape
Straight inferred
Mouth position
Inferior (downward) inferred
Lips
Thick / fleshy inferred
Barbels
No sourced
Dorsal fins
One continuous inferred
Dorsal spines
Yes sourced

Habitat & distribution

Water type
Freshwater sourced
Substrate
Mixed bottom sourced
Min depth (m)
3.0 verified
Max depth (m)
60.0 verified
Natural range
Endemic to Lake Malawi in East Africa; rock, transition and sand zones. inferred
Origin
Native sourced

Behaviour & biology

Diet
Carnivore sourced
Diet (detail)
Small invertebrates from the silt sourced
Social behaviour
Small groups inferred
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
Numerous comb-shaped pharyngeal teeth to sieve food from silt; maternal mouthbrooder. sourced

For anglers

Edibility
Rarely eaten sourced
Fishing method
Bottom fishing with natural bait (worm, shrimp or fish) on or just above the seabed. inferred
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 Ctenopharynx

More from the family Cichlidae

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