Les Amphipodes du genre Gammarus dans le Bassin d’Arcachon

Five species of the genus Gammarus have been found in and around the Basin of Arcachon (southwestern France). Short notes on the autecology of these species are given. Literature records of G. duebeni and of G. aequicauda from the Basin rest on confusion with other species, as is proved by re-examination of the original material and by renewed sampling on the localities mentioned in the literature