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Ray (Atlantoraja castelnaui) — Arhynchobatidae

Ray

Atlantoraja castelnaui
CR · Critically Endangered

The Ray (Atlantoraja castelnaui) is a saltwater fish of the family Arhynchobatidae that grows up to 132 cm.

Length
132 cm
Water
Saltwater
Depth
10.0–100.0 m
Diet
Carnivore
Behaviour
Solitary
Body shape
Irregular
Substrate
Sand / mud bottom
Danger
Harmless
Range
Southwest Atlantic; soft bottoms of the continental shelf.
Edibility
Commonly eaten

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Description

The spotback skate is a skate (Arhynchobatidae) from the southwestern Atlantic Ocean. The species has a large, diamond-shaped, strongly flattened body with large pectoral fins and a pattern of dark spots on the back. It lives bottom-bound on soft bottoms of the continental shelf. As a bottom hunter it feeds on fishes, crustaceans and other invertebrates. It lays eggs in horny egg cases. Owing to fishing pressure the species is critically endangered. Unlike stingrays it has no venomous spine.

Frequently asked questions

How do you recognise the Ray?

The Ray has an irregular in shape body, is mainly brown and shows a spots pattern. Dark blotches on the back; oviparous ray without a venomous spine, critically endangered by fishing.

Where does the Ray live?

The Ray lives in the sea (marine waters) and is mostly found around sand or mud bottom. Southwest Atlantic; soft bottoms of the continental shelf.

How big does the Ray get?

The Ray grows to a maximum of about 132 cm. On average the species is around 45 cm.

Is the Ray dangerous to humans?

No, the Ray is harmless to humans. None required: this species is harmless to humans.

Is the Ray edible?

Yes, the Ray is commonly eaten.

More photos

Ray (Atlantoraja castelnaui) — Arhynchobatidae — 2
Wikimedia Commons — A. Miranda-Ribeiro (1907) (Public domain)
Ray (Atlantoraja castelnaui) — Arhynchobatidae — 3
Caio Henrique Cutrim (CC BY-NC 4.0) via GBIF — iNaturalist
Ray (Atlantoraja castelnaui) — Arhynchobatidae — 4
Caio Henrique Cutrim (CC BY-NC 4.0) via GBIF — iNaturalist
Ray (Atlantoraja castelnaui) — Arhynchobatidae — 5
iNaturalist ((c) Diego Almendras, some rights reserved (CC BY-NC))
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All data

Identification

English name
Ray verified
Scientific name
Atlantoraja castelnaui
Family
Arhynchobatidae
Other names
Spotback skate verified

Appearance

Size class
Extra large verified
Max length (cm)
132.0 verified
Average length (cm)
45.0 verified
Body shape
Irregular sourced
Dominant colour
Brown inferred
Pattern
Spots inferred
Tail shape
Straight inferred
Mouth position
Inferior (downward) inferred
Lips
Thin inferred
Barbels
No sourced
Dorsal fins
Two separate inferred
Dorsal spines
No sourced

Habitat & distribution

Water type
Saltwater sourced
Substrate
Sand / mud bottom sourced
Min depth (m)
10.0 verified
Max depth (m)
100.0 verified
Natural range
Southwest Atlantic; soft bottoms of the continental shelf. inferred
Origin
Native sourced

Behaviour & biology

Diet
Carnivore sourced
Diet (detail)
Fishes, crustaceans and other invertebrates sourced
Social behaviour
Solitary inferred
Territorial
No inferred
Reproduction
Separate sexes sourced
Sexual dimorphism
No inferred
Seasonality
Present year-round in its habitat; no pronounced seasonality known. inferred
Special features
Dark blotches on the back; oviparous ray without a venomous spine, critically endangered by fishing. sourced

For anglers

Edibility
Commonly 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
Harmless sourced
First aid
None required: this species is harmless to humans. sourced

Status & sources

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

Same genus Atlantoraja

More from the family Arhynchobatidae

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