undulate skate

Scientific name Raja undulata
Descriptor Lacepède
Year of description 1802
IUCN category EN
Family Rajidae
Genus Raja
Raja undulata Raja undulata


Raja undulata, commonly known as undulate skate, is a salt water fish.

Who is it?


  • Average size
    80 cm
  • Maximum size
    100 cm
  • Longevity
    15 year
  • Pattern
  • Average size
    80 cm
  • Maximum size
    100 cm
  • Longevity
    15 year
  • Pattern

How to recognize the undulate skate ?

The undulate skate measures between 80 and 100 cm. This fish is unicolore with a predominantly marron and gris body. The also has marron and beige mottling.

Behaviour & Life cycle

  • diet
  • Sociability
  • territorial
  • Way of living

The undulate skate is a fish solitary naturally found on the bottom. This species is carnivorous .

This species is territorial and does not appreciate the presence of intruders nearby, especially animals with similar behavior. However, the undulate skate has little concern for non-territorial animals.


  • Reproduction
    ovipare qui pond sur substrat découvert

The undulate skate is a fish ovipare qui pond sur substrat découvert.

Risks for humans

  • Venomous
  • Sting

What to do in the event of a sting?

in case of sting, the following rules should be followed, in this order:

  • Isolate the victim from the danger and quickly remove him or her from the water
  • Call for help
  • Lay the victim down in a half-sitting position and avoid any effort
  • Immobilize the affected limb
  • Clean the wound
  • The venom of this species being thermolabile, it can be neutralized if it is submitted to a temperature of about 45 °C. It is therefore possible to heat the wound. This popular technique should be practiced with great care so as not to aggravate the wound by burning it. It is advisable to immerse the affected limb in hot water.
  • If the puncture is too deep, heating the wound will be less effective.

Sometimes the sting can cause discomfort or even loss of consciousness in the victim. The stings are usually very painful.

Where to find it?

Where to see this species?

What is its habitat?

Natural environment characteristics

  • Temperature
    10 - 17 °C
  • Depth
    50 - 200 m

Biotope presentation

The undulate skate is most often found at a depth between 50m and 200m. However, it is not impossible to find this species at other depths.

Species of the same biotope

To go further

To read on the web

Sources & Contributions

Participation & Validation

The Fishipedia team and specialist contributors are committed to providing high-quality content. However, although the information comes from scientific sources or testimonials from specialists, the cards may contain inaccuracies.

Adrien Falzon

Adrien Falzon


Translation done with the valuable contribution of our translators, who make this information available to a wider audience. We sincerely thank them for their commitment.

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Where to see this species?

Same genus

Species of the same biotope

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