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Magdalena river stingray (Potamotrygon magdalenae) — Potamotrygonidae

Magdalena river stingray

Potamotrygon magdalenae

The Magdalena river stingray (Potamotrygon magdalenae) is a freshwater fish of the family Potamotrygonidae that grows up to 35 cm.

Length
35 cm
Water
Freshwater
Body shape
Irregular
Substrate
Mixed bottom
Danger
Venomous / poisonous

Description

The Magdalena river stingray is a freshwater stingray (Potamotrygonidae) endemic to the Magdalena drainage of Colombia. The species grows to about 35 cm wide and has a round, flattened, brown body disc with a pale-spotted pattern. The tail carries a serrated venomous spine. As a bottom-dweller it lies half-buried on sand and mud bottoms of rivers and crushes molluscs, crustaceans and small fish. It is not aggressive, but stepping on the tail gives an extremely painful, venomous wound; locally a feared fish.

Frequently asked questions

How do you recognise the Magdalena river stingray?

The Magdalena river stingray has an irregular in shape body, is mainly brown and shows a spots pattern.

Where does the Magdalena river stingray live?

The Magdalena river stingray lives in fresh water and is mostly found around mixed bottom.

How big does the Magdalena river stingray get?

The Magdalena river stingray grows to a maximum of about 35 cm.

Is the Magdalena river stingray dangerous to humans?

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

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All data

Identification

Dutch name
Magdalena-zoetwaterrog sourced
English name
Magdalena river stingray sourced
Scientific name
Potamotrygon magdalenae
Family
Potamotrygonidae

Appearance

Size class
Medium verified
Max length (cm)
35.0 verified
Body shape
Irregular sourced
Dominant colour
Brown sourced
Pattern
Spots sourced
Tail shape
Straight inferred
Mouth position
Inferior (downward) sourced

Habitat & distribution

Water type
Freshwater sourced
Substrate
Mixed bottom sourced
Origin
Native inferred

Behaviour & biology

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
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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