Thornback skate, Raja clavata (Linnaeus, 1758)
Ellis, J.R.; Walker, P.; Dulvy, N.K. (2005). Thornback skate, Raja clavata (Linnaeus, 1758), in: Fowler, S.L. et al. (Ed.) Sharks, rays and chimaeras: the status of the Chondrichthyan fishes. Status survey. pp. 340-342 In: Fowler, S.L. et al. (Ed.) (2005). Sharks, rays and chimaeras: the status of the Chondrichthyan fishes. Status survey. IUCN/SSC Shark Specialist Group: Gland. ISBN 2-8317-0700-5. X, 461 pp., more |