Home · Myliobatidae · Brazilian cownose ray
Brazilian cownose ray (Rhinoptera brasiliensis) — Myliobatidae

Brazilian cownose ray

Rhinoptera brasiliensis
Family: Myliobatidae
EN · Endangered

The Brazilian cownose ray (Rhinoptera brasiliensis) is a saltwater fish of the family Myliobatidae that grows up to 104 cm.

Length
104 cm
Water
Saltwater
Depth
0.0–20.0 m
Diet
Carnivore
Behaviour
Schooling
Activity
Diurnal
Body shape
Irregular
Substrate
Sand / mud bottom
Danger
Venomous / poisonous
Range
Western Atlantic
Edibility
Rarely eaten

Want the complete picture on the Brazilian cownose ray?

Get the app

Description

The Brazilian cownose ray is a large ray from the western Atlantic, off the coast of South America. The species grows to about 100 cm across and has a flat, rhomboid body disc, an indented, cow-nose-like snout and a long tail with a venomous spine. It often schools in large numbers through shallow coastal and estuarine water and uses its pectoral fins to search for molluscs and crustaceans, which it crushes with flat jaws. The venomous spine can inflict a painful wound. Owing to fishing the IUCN assesses it as Endangered (EN).

Frequently asked questions

How do you recognise the Brazilian cownose ray?

The Brazilian cownose ray has an irregular in shape body, is mainly brown and shows a plain pattern. Cownose-like snout and a venomous spine on the tail; schooling cownose ray

Where does the Brazilian cownose ray live?

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

How big does the Brazilian cownose ray get?

The Brazilian cownose ray grows to a maximum of about 104 cm. On average the species is around 90 cm.

Is the Brazilian cownose ray dangerous to humans?

The Brazilian cownose ray is venomous — handle spines with care and seek medical help after a sting if needed. If stung by the tail spine: immerse the wound immediately in water as hot as tolerable (about 45 C) for 30-90 minutes to break down the venom, remove visible spine fragments, and seek medical help.

Is the Brazilian cownose ray edible?

The Brazilian cownose ray is rarely eaten.

More photos

Brazilian cownose ray (Rhinoptera brasiliensis) — Myliobatidae — 2
iNaturalist ((c) Barb Heenan Andersen, some rights reserved (CC BY-NC))
Brazilian cownose ray (Rhinoptera brasiliensis) — Myliobatidae — 3
iNaturalist ((c) José Francisco Colorado-Dapa, some rights reserved (CC BY))
Brazilian cownose ray (Rhinoptera brasiliensis) — Myliobatidae — 4
Wikimedia Commons — Jacques Burkhardt (Public domain)
Brazilian cownose ray (Rhinoptera brasiliensis) — Myliobatidae — 5
iNaturalist ((c) Caio Henrique Cutrim, some rights reserved (CC BY-NC))
Fin

Want the complete picture on the Brazilian cownose ray?

Point your camera at the fish and Fin names the species in seconds. Free, and the Brazilian cownose ray is one of 12,519 species in the app.

Get the app →

All data

Identification

English name
Brazilian cownose ray verified
Scientific name
Rhinoptera brasiliensis
Family
Myliobatidae
Other names
Brazilian cow-nose ray; Ticon cownose ray verified

Appearance

Size class
Extra large verified
Max length (cm)
104.0 verified
Average length (cm)
90.0 verified
Body shape
Irregular sourced
Dominant colour
Brown sourced
Pattern
Plain 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
Min depth (m)
0.0 verified
Max depth (m)
20.0 verified
Natural range
Western Atlantic verified
Origin
Native verified

Behaviour & biology

Diet
Carnivore sourced
Diet (detail)
Molluscs and crustaceans inferred
Social behaviour
Schooling sourced
Territorial
No sourced
Activity
Diurnal sourced
Reproduction
Separate sexes sourced
Sexual dimorphism
No sourced
Seasonality
Schooling coastal cownose ray; present year-round. sourced
Special features
Cownose-like snout and a venomous spine on the tail; schooling cownose ray sourced

For anglers

Edibility
Rarely eaten sourced
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
If stung by the tail spine: immerse the wound immediately in water as hot as tolerable (about 45 C) for 30-90 minutes to break down the venom, remove visible spine fragments, and seek medical help. verified

Status & sources

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

Same genus Rhinoptera

More from the family Myliobatidae

Fin

Want the complete picture on the Brazilian cownose ray?

Point your camera at the fish and Fin names the species in seconds. Free, and the Brazilian cownose ray is one of 12,519 species in the app.

Get the app →
Is this the Brazilian cownose ray? Get the app