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Shorttail river stingray (Potamotrygon brachyura) — Potamotrygonidae

Shorttail river stingray

Potamotrygon brachyura

The Shorttail river stingray (Potamotrygon brachyura) is a freshwater fish of the family Potamotrygonidae that grows up to 95 cm.

Length
95 cm
Water
Freshwater
Body shape
Irregular
Substrate
Sand / mud bottom
Danger
Venomous / poisonous
Edibility
Rarely eaten

Description

The Shorttail river stingray is a freshwater stingray (Potamotrygonidae) from fresh water of the Parana and Uruguay basins in South America. The species grows to about 95 cm across and has a round, flattened disc, which blends well with the bottom with a marbled pattern, and a tail with a venomous spine. As a bottom-dweller it often lies half-buried on sand and mud bottoms of rivers and searches for molluscs, crustaceans and small fish. The tail spine can inflict a very painful wound; never walk on sandy bottoms without shuffling.

Frequently asked questions

How do you recognise the Shorttail river stingray?

The Shorttail river stingray has an irregular in shape body and is mainly brown.

Where does the Shorttail river stingray live?

The Shorttail river stingray lives in fresh water and is mostly found around sand or mud bottom.

How big does the Shorttail river stingray get?

The Shorttail river stingray grows to a maximum of about 95 cm.

Is the Shorttail river stingray dangerous to humans?

The Shorttail river stingray is venomous — handle spines with care and seek medical help after a sting if needed.

Is the Shorttail river stingray edible?

The Shorttail river stingray is rarely eaten.

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All data

Identification

Dutch name
Kortstaart-rivierrog sourced
English name
Shorttail river stingray sourced
Scientific name
Potamotrygon brachyura
Family
Potamotrygonidae
Other names
Short-tailed river stingray verified

Appearance

Size class
Extra large verified
Max length (cm)
95.0 verified
Body shape
Irregular sourced
Dominant colour
Brown sourced
Tail shape
Straight inferred

Habitat & distribution

Water type
Freshwater sourced
Substrate
Sand / mud bottom sourced
Origin
Native inferred

Behaviour & biology

Territorial
No inferred
Reproduction
Separate sexes inferred
Sexual dimorphism
No inferred

For anglers

Edibility
Rarely eaten inferred
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
Venomous / poisonous verified

Status & sources

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

Same genus Potamotrygon

More from the family Potamotrygonidae

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