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Serrula round ray (Urotrygon serrula) — Urotrygonidae

Serrula round ray

Urotrygon serrula
Family: Urotrygonidae

The Serrula round ray (Urotrygon serrula) is a saltwater fish of the family Urotrygonidae that grows up to 30 cm.

Length
30 cm
Water
Saltwater
Body shape
Irregular
Substrate
Sand / mud bottom
Danger
Venomous / poisonous
Range
South America: Peru

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Description

The serrula round ray is a round stingray (Urotrygonidae) from coastal waters of the eastern Pacific, from Mexico to Peru. The species grows to about 30 cm wide and has a flattened, almost round, sandy-brown body with a fairly stout tail bearing a venomous spine, and rows of small thorns over the back. As a bottom-dweller it often lies half-buried on sand bottoms and searches for small crustaceans, worms and molluscs. The tail spine can give an extremely painful sting wound.

Frequently asked questions

How do you recognise the Serrula round ray?

The Serrula round ray has an irregular in shape body and is mainly brown. Bears venomous spines or tissue; handle with great care.

Where does the Serrula round ray live?

The Serrula round ray lives in the sea (marine waters) and is mostly found around sand or mud bottom. South America: Peru

How big does the Serrula round ray get?

The Serrula round ray grows to a maximum of about 30 cm.

Is the Serrula round ray dangerous to humans?

The Serrula round ray is venomous — handle spines with care and seek medical help after a sting if needed. For a sting from the tail spine: rinse the wound with seawater, apply pressure to limit bleeding and immerse the part for 30-90 minutes in water as hot as can be tolerated (about 45 C). The wound is often deep and may contain spine fragments; seek medical care, have the wound cleaned and check tetanus status.

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All data

Identification

English name
Serrula round ray sourced
Scientific name
Urotrygon serrula
Family
Urotrygonidae
Other names
Stingray sourced

Appearance

Size class
Medium verified
Max length (cm)
30 sourced
Body shape
Irregular sourced
Dominant colour
Brown sourced
Tail shape
Straight inferred
Dorsal spines
Yes sourced

Habitat & distribution

Water type
Saltwater sourced
Substrate
Sand / mud bottom sourced
Natural range
South America: Peru sourced
Origin
Native inferred

Behaviour & biology

Territorial
No inferred
Reproduction
Separate sexes inferred
Sexual dimorphism
No inferred
Seasonality
Present year-round in its habitat; no pronounced seasonality known. inferred
Special features
Bears venomous spines or tissue; handle with great care. inferred

For anglers

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
Venomous / poisonous verified
First aid
For a sting from the tail spine: rinse the wound with seawater, apply pressure to limit bleeding and immerse the part for 30-90 minutes in water as hot as can be tolerated (about 45 C). The wound is often deep and may contain spine fragments; seek medical care, have the wound cleaned and check tetanus status. sourced

Status & sources

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

Same genus Urotrygon

More from the family Urotrygonidae

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