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Lusitanian cownose ray (Rhinoptera marginata) — Myliobatidae

Lusitanian cownose ray

Rhinoptera marginata
Family: Myliobatidae
CR · Critically Endangered

The Lusitanian cownose ray (Rhinoptera marginata) is a saltwater fish of the family Myliobatidae that grows up to 200 cm.

Length
200 cm
Water
Saltwater
Diet
Carnivore
Behaviour
Large groups
Activity
Diurnal
Body shape
Flat / disc-shaped
Substrate
Sand / mud bottom
Danger
Venomous / poisonous
Range
Eastern Atlantic and the Mediterranean Sea, pelagic above sandy and silty bottoms of coastal water and the continental shelf; sometimes forms large shoals.
Edibility
Rarely eaten

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Description

The Lusitanian cownose ray is a large, wing-shaped ray of the family Rhinopteridae (cownose rays) reaching a wingspan of about 2 metres. The diamond-shaped body has broad, pointed pectoral fins and a strikingly indented, two-lobed head resembling a cow's muzzle. The long, whip-like tail bears a venomous spine. The species swims pelagically above sand and mud bottoms of coastal water in the eastern Atlantic and the Mediterranean, often in large schools. With flat jaw plates it crushes shellfish, crabs and crustaceans from the bottom. It is ovoviviparous. Through heavy fishing and bycatch it has declined sharply and is assessed as Critically Endangered (CR).

Frequently asked questions

How do you recognise the Lusitanian cownose ray?

The Lusitanian cownose ray has a flattened, disc-shaped body, is mainly brown and shows a plain pattern. Large, wing-shaped ray with broad, pointed pectoral fins and an indented, cownose-like head; a long tail with a venomous spine.

Where does the Lusitanian cownose ray live?

The Lusitanian cownose ray lives in the sea (marine waters) and is mostly found around sand or mud bottom. Eastern Atlantic and the Mediterranean Sea, pelagic above sandy and silty bottoms of coastal water and the continental shelf; sometimes forms large shoals.

How big does the Lusitanian cownose ray get?

The Lusitanian cownose ray grows to a maximum of about 200 cm.

Is the Lusitanian cownose ray dangerous to humans?

The Lusitanian cownose ray is venomous — handle spines with care and seek medical help after a sting if needed. The tail bears one or more venomous spines: a sting is very painful. Immerse the wound for 30-90 minutes in water as hot as can be tolerated (about 45 C) and seek medical help.

Is the Lusitanian cownose ray edible?

The Lusitanian cownose ray is rarely eaten.

More photos

Lusitanian cownose ray (Rhinoptera marginata) — Myliobatidae — 2
iNaturalist ((c) Prince, some rights reserved (CC BY-NC))
Lusitanian cownose ray (Rhinoptera marginata) — Myliobatidae — 3
Wikimedia Commons — tal shema tal84shema@gmail.com (CC BY 3.0)
Lusitanian cownose ray (Rhinoptera marginata) — Myliobatidae — 4
iNaturalist ((c) shahar chaikin, some rights reserved (CC BY))
Lusitanian cownose ray (Rhinoptera marginata) — Myliobatidae — 5
Wikimedia Commons — tal shema tal84shema@gmail.com (CC BY 3.0)

Easily confused with

These species look like the Lusitanian cownose ray and live in the same waters.

Fin

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All data

Identification

English name
Lusitanian cownose ray verified
Scientific name
Rhinoptera marginata
Family
Myliobatidae
Other names
Lusitanian cownose ray; Lusitanian cow-nose ray verified

Appearance

Size class
Extra large verified
Max length (cm)
200.0 verified
Body shape
Flat / disc-shaped verified
Dominant colour
Brown sourced
Pattern
Plain sourced
Tail shape
Straight inferred
Mouth position
Inferior (downward) inferred
Lips
Thin inferred
Barbels
No verified
Dorsal fins
One continuous sourced
Dorsal spines
No verified

Habitat & distribution

Water type
Saltwater verified
Substrate
Sand / mud bottom verified
Natural range
Eastern Atlantic and the Mediterranean Sea, pelagic above sandy and silty bottoms of coastal water and the continental shelf; sometimes forms large shoals. verified
Origin
Native verified

Behaviour & biology

Diet
Carnivore verified
Diet (detail)
Shellfish, crabs and crustaceans, crushed with flat jaw plates sourced
Social behaviour
Large groups verified
Territorial
No verified
Activity
Diurnal inferred
Reproduction
Separate sexes verified
Sexual dimorphism
No verified
Seasonality
Migrates in shoals along the coast; ovoviviparous (live-bearing), with a few young per litter. sourced
Special features
Large, wing-shaped ray with broad, pointed pectoral fins and an indented, cownose-like head; a long tail with a venomous spine. sourced

For anglers

Edibility
Rarely eaten verified
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
The tail bears one or more venomous spines: a sting is very painful. Immerse the wound for 30-90 minutes in water as hot as can be tolerated (about 45 C) and seek medical help. sourced

Status & sources

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

Same genus Rhinoptera

More from the family Myliobatidae

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