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Cuphead skate (Bathyraja scaphiops) — Arhynchobatidae

Cuphead skate

Bathyraja scaphiops
LC · Least Concern

The Cuphead skate (Bathyraja scaphiops) is a saltwater fish of the family Arhynchobatidae that grows up to 111 cm.

Length
111 cm
Water
Saltwater
Depth
100–500 m
Diet
Carnivore
Behaviour
Solitary
Body shape
Irregular
Substrate
Sand / mud bottom
Danger
Harmless
Range
Southwest Atlantic; sandy and muddy bottoms of the continental shelf and slope.
Edibility
Rarely eaten

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Description

The cuphead skate is a skate of the family Arhynchobatidae from the south-western Atlantic off southern South America. The species grows to about 1.1 metres and has a flat, rhomboidal pectoral disc with conspicuous, cup-like recessed eyes, to which the name refers. It lives on sand and mud bottoms of the continental shelf and slope. As a bottom hunter it feeds on crustaceans, worms, molluscs and small fishes. Reproduction is oviparous, with horny egg cases with projections. Unlike stingrays a skate lacks a venomous tail spine; it is harmless to humans.

Frequently asked questions

How do you recognise the Cuphead skate?

The Cuphead skate has an irregular in shape body, is mainly brown and shows a plain pattern. Bowl-shaped sunken eyes; cold-water skate without a venomous tail spine.

Where does the Cuphead skate live?

The Cuphead skate lives in the sea (marine waters) and is mostly found around sand or mud bottom. Southwest Atlantic; sandy and muddy bottoms of the continental shelf and slope.

How big does the Cuphead skate get?

The Cuphead skate grows to a maximum of about 111 cm.

Is the Cuphead skate dangerous to humans?

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

Is the Cuphead skate edible?

The Cuphead skate is rarely eaten.

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All data

Identification

English name
Cuphead skate verified
Scientific name
Bathyraja scaphiops
Family
Arhynchobatidae
Other names
Cuphead skate; Ray verified

Appearance

Size class
Extra large verified
Max length (cm)
111 verified
Body shape
Irregular sourced
Dominant colour
Brown
Pattern
Plain
Mouth position
Inferior (downward)
Lips
Thin
Barbels
No sourced
Dorsal fins
Two separate
Dorsal spines
No sourced

Habitat & distribution

Water type
Saltwater sourced
Substrate
Sand / mud bottom sourced
Min depth (m)
100 verified
Max depth (m)
500 verified
Natural range
Southwest Atlantic; sandy and muddy bottoms of the continental shelf and slope.
Origin
Native sourced

Behaviour & biology

Diet
Carnivore sourced
Diet (detail)
Crustaceans, worms, molluscs and small fishes sourced
Social behaviour
Solitary
Territorial
No
Reproduction
Separate sexes sourced
Sexual dimorphism
No
Seasonality
Present year-round in its habitat; no pronounced seasonality known.
Special features
Bowl-shaped sunken eyes; cold-water skate without a venomous tail spine. sourced

For anglers

Edibility
Rarely eaten sourced
Fishing method
Bottom fishing with natural bait (worm, shrimp or fish) on or just above the seabed.
Regulations source

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 Bathyraja

More from the family Arhynchobatidae

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