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Triangular flounder (Paralichthys isosceles) — Paralichthyidae

Triangular flounder

Paralichthys isosceles

The Triangular flounder (Paralichthys isosceles) is a saltwater fish of the family Paralichthyidae that grows up to 32 cm.

Length
32 cm
Water
Saltwater
Depth
50.0–190.0 m
Behaviour
Solitary
Body shape
Flatfish
Substrate
Sand / mud bottom
Danger
Harmless

Description

The Triangular flounder is a left-eyed flounder (Paralichthyidae) from sand and mud bottoms of the southwestern Atlantic around South America. The species grows to about 35 cm and has a strongly flattened, oval body with both eyes on the left side; the upper side is sand-coloured and mottled for camouflage, the underside pale. As an ambush predator it lies half-buried on the bottom and seizes passing small fish, shrimp and worms. It is a valued food fish. The fish is harmless to humans.

Frequently asked questions

How do you recognise the Triangular flounder?

The Triangular flounder has a flatfish-shaped body, is mainly brown and shows a spots pattern.

Where does the Triangular flounder live?

The Triangular flounder lives in the sea (marine waters) and is mostly found around sand or mud bottom.

How big does the Triangular flounder get?

The Triangular flounder grows to a maximum of about 32 cm.

Is the Triangular flounder dangerous to humans?

No, the Triangular flounder is harmless to humans.

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All data

Identification

Dutch name
Driehoek-bot sourced
English name
Triangular flounder sourced
Scientific name
Paralichthys isosceles
Family
Paralichthyidae

Appearance

Size class
Medium verified
Max length (cm)
32.0 verified
Body shape
Flatfish sourced
Dominant colour
Brown sourced
Pattern
Spots sourced
Tail shape
Rounded inferred

Habitat & distribution

Water type
Saltwater sourced
Substrate
Sand / mud bottom sourced
Min depth (m)
50.0 verified
Max depth (m)
190.0 verified
Origin
Native inferred

Behaviour & biology

Social behaviour
Solitary inferred
Territorial
No inferred
Reproduction
Separate sexes inferred
Sexual dimorphism
No inferred

For anglers

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 verified

Status & sources

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

Same genus Paralichthys

More from the family Paralichthyidae

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