Scientia Marina, Vol 64, No S1 (2000)

Deep-water Hydromedusae from the Lacaze-Duthiers submarine canyon (Banyuls, northwestern Mediterranean) and description of two new genera, Guillea and Parateclaia

J. Bouillon
Laboratoire de Biologie Marine, Faculté des Sciences, Université Libre de Bruxelles, Belgium

F. Pagès
Institut de Ciències del Mar (CSIC), Spain

J. M. Gili
Institut de Ciències del Mar (CSIC), Spain

A. Palanques
Institut de Ciències del Mar (CSIC), Spain

P. Puig
Institut de Ciències del Mar (CSIC), Spain

S. Heussner
Centre de Formation et de Recherche sur l’Environment Marin, CNRS UMR 5110, Université de Perpignan, France


Several species of hydromedusae are reported from material collected by sediment traps placed in the Lacaze-Duthiers submarine canyon, off Banyuls (north-western Mediterranean). Two new taxa Guillea canyonincolae gen. nov. et sp. nov. and Parateclaia euromarge fam. nov., gen. nov. et sp. nov., are described. The existence of highly-specific hydromedusa populations in other Mediterranean canyons which appear to be related via geological history, topography, hydrographic and ecological features peculiar to each canyon, is discussed in relation to these new records.


Hydromedusae; submarine canyons; western Mediterranean; swimmers; deep-sea fauna; biodiversity; Guillea

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