Animalia > Chordata > Elasmobranchii > Rajiformes > Rajidae > Raja > Raja clavata

Raja clavata (Roker; Thornback ray; Maiden ray; Rocker; Skate; Thornback; Thornback maid ray; Thornback rough ray; Thornback skate; Thorny)

Language: Afrikaans; Albanian; Arabic; Catalan; Croatian; Danish; Dutch; Faroese; Finnish; French; German; Greek; Icelandic; Italian; Malagasy; Maltese; Mandarin Chinese; Norwegian; Polish; Portuguese; Romanian; Russian; Serbian; Spanish; Swedish; Turkish; Ukrainian

Wikipedia Abstract

(This article is about the species of fish in the Atlantic Ocean. For other fish with similar names, see Thornback.) The thornback ray (Raja clavata) or thornback skate is a species of fish in the Rajidae family. It is found in coastal waters of Europe and the Atlantic coast of Africa, possibly as far south as Namibia and even South Africa. Its natural habitats are open seas and shallow seas. It is sometimes seen trapped in large estuarine pools at low tide.Etymology: Raja: Latin, raja, -ae = a sting ray .
View Wikipedia Record: Raja clavata


Adult Weight [1]  21.826 lbs (9.90 kg)
Female Maturity [1]  10 years
Male Maturity [1]  10 years
Litter Size [1]  142
Maximum Longevity [1]  12 years

Protected Areas

Prey / Diet

Prey / Diet Overlap



Institutions (Zoos, etc.)

Institution Infraspecies / Breed 
Acquario di Genova
Dierenrijk Europa
London Aquarium
Oresundsakvariet (Oresund Aquarium)
Universeum Science Center


Eastern Atlantic: Iceland, Norway, North Sea and the western Baltic southward to Morocco and Namibia, including the Mediterranean and the Black Sea. Although reported from southern Africa, its status in the area is uncertain (Ref. 5578).;

External References



Attributes / relations provided by
1de Magalhaes, J. P., and Costa, J. (2009) A database of vertebrate longevity records and their relation to other life-history traits. Journal of Evolutionary Biology 22(8):1770-1774
2Jorrit H. Poelen, James D. Simons and Chris J. Mungall. (2014). Global Biotic Interactions: An open infrastructure to share and analyze species-interaction datasets. Ecological Informatics.
3Diet comparison of four ray species (Raja clavata, Raja brachyura, Raja montagui and Leucoraja naevus) caught along the Portuguese continental shelf, Inês Farias, Ivone Figueiredo, Teresa Moura, Leonel Serrano Gordo, Ana Neves and Bárbara Serra-Pereira, Aquat. Living Resour. 19, 105–114 (2006)
4Feeding ecology of demersal elasmobranchs from the shelf and slope off the Balearic Sea (western Mediterranean), MARIA VALLS, ANTONI QUETGLAS, FRANCESC ORDINES and JOAN MORANTA, Scientia Marina 75(4) December 2011, 633-639, Barcelona (Spain)
5CephBase - Cephalopod (Octopus, Squid, Cuttlefish and Nautilus) Database
6Gibson, D. I., Bray, R. A., & Harris, E. A. (Compilers) (2005). Host-Parasite Database of the Natural History Museum, London
Protected Areas provided by GBIF Global Biodiversity Information Facility
Biological Inventories of the World's Protected Areas in cooperation between the Information Center for the Environment at the University of California, Davis and numerous collaborators.
Abstract provided by DBpedia licensed under a Creative Commons License