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Butterfly ray (Gymnura poecilura) — Gymnuridae

Butterfly ray

Gymnura poecilura
Family: Gymnuridae
NT · Near Threatened

The Butterfly ray (Gymnura poecilura) is a saltwater fish of the family Gymnuridae that grows up to 250 cm.

Length
250 cm
Water
Saltwater
Depth
0–80.0 m
Diet
Carnivore
Behaviour
Solitary
Activity
Nocturnal
Body shape
Irregular
Substrate
Sand / mud bottom
Danger
Venomous / poisonous
Edibility
Rarely eaten

Description

The longtail butterfly ray is a large ray from the Indo-West Pacific. The species grows to about 250 cm including the tail and has a very wide, rhomboid, wing-like body disc and a thin, banded tail with a small venomous spine. As a bottom-dweller it often lies half-buried in sand and mud bottoms of shallow coastal and estuarine water and searches for crustaceans, molluscs and small fish. The venomous spine can inflict a painful wound. Owing to fishing the IUCN assesses it as Near Threatened (NT).

Frequently asked questions

How do you recognise the Butterfly ray?

The Butterfly ray has an irregular in shape body, is mainly brown and shows a spots pattern.

Where does the Butterfly ray live?

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

How big does the Butterfly ray get?

The Butterfly ray grows to a maximum of about 250 cm.

Is the Butterfly ray dangerous to humans?

The Butterfly ray is venomous — handle spines with care and seek medical help after a sting if needed.

Is the Butterfly ray edible?

The Butterfly ray is rarely eaten.

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All data

Identification

Dutch name
Langstaartvlinderrog sourced
English name
Butterfly ray verified
Scientific name
Gymnura poecilura
Family
Gymnuridae
Other names
Long-tailed butterfly ray; Longtailed butterfly-ray; Longtail butterfly ray verified

Appearance

Size class
Extra large verified
Max length (cm)
250.0 verified
Body shape
Irregular sourced
Dominant colour
Brown sourced
Pattern
Spots sourced
Tail shape
Rounded sourced
Mouth position
Inferior (downward) sourced
Lips
Thin sourced
Barbels
No sourced
Dorsal fins
One continuous sourced
Dorsal spines
No sourced

Habitat & distribution

Water type
Saltwater sourced
Substrate
Sand / mud bottom sourced
Max depth (m)
80.0 verified
Origin
Native verified

Behaviour & biology

Diet
Carnivore sourced
Social behaviour
Solitary sourced
Territorial
No sourced
Activity
Nocturnal sourced
Reproduction
Separate sexes sourced
Sexual dimorphism
No sourced

For anglers

Edibility
Rarely eaten sourced
Fishing method
Netvisserij sourced
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 Gymnura

More from the family Gymnuridae

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