↑ 1.01.11.21.31.4Hansson, H.G. (2001) Echinodermata, in: Costello, M.J. et al. (Ed.) (2001). European register of marine species: a check-list of the marine species in Europe and a bibliography of guides to their identification. Collection Patrimoines Naturels, 50:
↑Harms, J. , (1993) Check list of species (algae, invertebrates and vertebrates) found in the vicinity of the island of Helgoland (North Sea, German Bight) - a review of recent records., Helgoländer Meeresuntersuch. 47 1: 1-34.
↑Leloup, E. (1952) Contributions à l'étude de la faune belge: 19. Observation sur la crevette grise au large de la côte belge en 1949 [Contribution to the study on the Belgian fauna: 19. Observation on the brown shrimp along the Belgian coast in 1949]., Med. K. Belg. Inst. Nat. Wet. 18(1): 1-28
↑Müller, Y. (2004) Faune et flore du littoral du Nord, du Pas-de-Calais et de la Belgique: inventaire. [Coastal fauna and flora of the Nord, Pas-de-Calais and Belgium: inventory]., Commission Régionale de Biologie Région Nord Pas-de-Calais: France. 307 pp.
↑Southward, E.C.; Campbell, A.C. (2006) [Echinoderms: keys and notes for the identification of British species]., Synopses of the British fauna (new series), 56. Field Studies Council: Shrewsbury, UK. ISBN 1-85153-269-2. 272 pp.
