Non-marine Ostracoda (Crustacea) collected from the Camargue, southern France, with four species new to France

Le résumé fourni par la source

We report on the collection of 21 non-marine Ostracoda (Crustacea) species, mainly in July 2022, in the Rhône delta (Grande Camargue). The material comprises nine species new to the Camargue region (Grand delta du Rhône), of which four are new to France. These four are considered exotic in origin, and we suggest that they have been passively introduced in the Camargue during the second half of the 20th century: Bradleytriebella spinulosa (Akatova, 1958) nov. comb., Candonocypris novaezelandiae (Baird, 1843), Cypris granulata Daday, 1898, and Ilyodromus viridulus (Brady, 1886). Notes on these four species, and two previously recorded exotic species, i.e. Bradleycypris vittata (Sars, 1903) and Strandesia reticulata (Daday, 1898) from the Camargue are presented. Scanning electron micrographs of the carapaces and/or valves of all the species recorded are given. A checklist of the 44 non-marine ostracod species recorded from the Grand delta du Rhône is presented. A new taxonomic combination is provided: Bradleytriebella spinulosa (Akatova, 1958) nov. comb.

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