Eurythoe complanata (Pallas, 1766)

Faulwetter, Sarah, Simboura, Nomiki, Katsiaras, Nikolaos, Chatzigeorgiou, Giorgos & Arvanitidis, Christos, 2017, Polychaetes of Greece: an updated and annotated checklist, Biodiversity Data Journal 5, pp. 20997-20997: 20997

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Eurythoe complanata (Pallas, 1766)


Eurythoe complanata (Pallas, 1766) 

Ecological interactions

Native status

Non-native (casual)


Species complex. Reported from Greece by Chatzigeorgiou et al. (2016) based on a single specimen (identified using Day (1967) and Barroso et al. (2010)). Eurythoe complanata  is a complex of cryptic and pseudo-cryptic species ( Barroso et al. 2010, Arias et al. 2013a), containing two cryptic forms of Eurythoe complanata  and the species Eurythoe laevisetis  Fauvel, 1914, which differs from Eurythoe complanata  sensu stricto by the absence of harpoon-shaped notochaetae ( Arias et al. 2013a). In the Mediterranean, two of the species in this species complex occur: Eurythoe laevisetis  in the central and western basin, and Eurythoe complanata  in the eastern basin and the Alboran Sea. Both species are native to the Caribbean and tropical Atlantic and non-native to the Mediterranean, but their exact pathways of introduction to the Mediterranean and thus the identity of the species occurring in the eastern basin are yet unknown ( Arias et al. 2013a).