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Spinetail ray (Bathyraja spinicauda) — Arhynchobatidae

Spinetail ray

Bathyraja spinicauda
NT · Near Threatened

The Spinetail ray (Bathyraja spinicauda) is a saltwater fish of the family Arhynchobatidae that grows up to 170 cm.

Length
170 cm
Water
Saltwater
Depth
111.0–2949.0 m
Diet
Carnivore
Behaviour
Solitary
Body shape
Irregular
Substrate
Open water
Danger
Harmless
Edibility
Rarely eaten

Description

The spinytail skate is a large skate of the family Arhynchobatidae from the cold, deep northern Atlantic. The species grows to about 1.7 metres and has a flat, rhomboidal pectoral disc with a row of stout thorns along the tail, to which the name refers. It is a bottom dweller of deep, cold water on the continental shelf and slope. As a bottom hunter it feeds on all kinds of bottom animals, including fishes, crustaceans and molluscs. Reproduction is oviparous, with horny egg cases. Owing to fishing as bycatch it is listed as Near Threatened (NT). Unlike stingrays a skate lacks a venomous tail spine; it is harmless to humans.

Frequently asked questions

How do you recognise the Spinetail ray?

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

Where does the Spinetail ray live?

The Spinetail ray lives in the sea (marine waters) and is mostly found around open water.

How big does the Spinetail ray get?

The Spinetail ray grows to a maximum of about 170 cm.

Is the Spinetail ray dangerous to humans?

No, the Spinetail ray is harmless to humans.

Is the Spinetail ray edible?

The Spinetail ray is rarely eaten.

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All data

Identification

Dutch name
Groenlandse rog sourced
English name
Spinetail ray verified
Scientific name
Bathyraja spinicauda
Family
Arhynchobatidae
Other names
Spinetail ray; Spinetail skate; Spinytail skate; Spiny-tailed skate verified

Appearance

Size class
Extra large verified
Max length (cm)
170.0 verified
Body shape
Irregular sourced
Dominant colour
Brown inferred
Pattern
Plain 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
Open water sourced
Min depth (m)
111.0 verified
Max depth (m)
2949.0 verified
Origin
Native sourced

Behaviour & biology

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

For anglers

Edibility
Rarely eaten sourced
Fishing method
Sportvissen met kunstaas of (dood/levend) aasvis door te trollen, te werpen of drijvend te vissen in open water. inferred
Regulations source
FishBase ↗ inferred

Safety

Danger to humans
Harmless 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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