PISCES : Rajiformes : RajidaeCARTILAGINOUS FISH

Rostroraja alba (Lacepède, 1803)

Bottlenose skate, white skate


Description: A very large skate that can reach up to 2.3 m in length. The snout is very distinctive, tapering to a sharp point and covered with thorns and gives this species one of its common names - the bottlenose skate. It has a flattened grey to brown body with a lighter underside, the front edges of the body are concave with a sinuous outline.

Habitat: Reported to prefer rockier habitats, found from 40 - 400 m. Occasionally deeper.

Distribution: Most records are from west coast of Ireland with a few scattered records elsewhere, some of which are washed up egg cases.

Similar Species: Could potentially be confused with other large skates (Dipturus spp.).

Key Identification Features:

  • Large skate up to 2.3 m.
  • Nose tapered to a sharp point and covered in spines.

Distribution Map from NBN: Rostroraja alba at National Biodiversity Network mapping facility, data for UK.

iNaturalist: Rostroraja alba at iNaturalist World Species Observations database.

WoRMS: Rostroraja alba at World Register of Marine Species.

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 Picton, B.E., Keatley, L. & Morrow, C.C. (2026). Rostroraja alba. (Lacepède, 1803). [In] Encyclopedia of Marine Life of Britain and Ireland.
https://habitas.org/mbdp/species.php?item=ZF1330. Accessed on 2026-11-01