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Nannastacidae (Crustacea, Cumacea) of the south-eastern Atlantic deep sea

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Abstract

The Nannastacidae of the deep south-eastern Atlantic obtained during the German expedition DIVA II and the French expeditions ZAIANGO and BIOZAIRE 1 to 3 were analysed. Thirteen more frequently occurring nannastacid species were found, including seven new deep-sea species and a new genus from the Cape, Angola and Guinea Basins: Campylaspides armatus sp. n., Bathypicrocuma ifrmer gen. and sp.n., Styloptocuma dentatum sp. n. , S. cuspidatum sp. n., S. paucidentatum sp. n., Styloptocuma enigma sp. n., and Thalycrocuma barbatulum sp. n. The species Procampylaspis lucida and Campylaspis serratocarinata had already been described for the Angola Basin but remained in open nomenclature. After their rediscovery, they were now named. The species Styloptocuma minimum, S. pleonserratum and Platycuma lineata were already known from the Angola Basin and were now rediscovered in the Cape and Guinea Basins. The species Atlantocuma tenuis was already known as widespread in the Atlantic. The most speciose genus in the family Nannastacidae described here is Styloptocuma with six species, four of which are new.

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Acknowledgements

Many thanks to crew and colleagues aboard RV “Meteor”, especially Drs Nils Brenke, Jürgen Guerrero Kommritz and Myriam Schüller for their help with the EBS and Dr. Michael Türkay (scientific leadership). Laura Würzberg sorted the EBS samples, Natalie Rotermund and Simon Weigmann gave technical assistance, especially during the digital photography, the pencil drawing and the morphometry, the latter also gave critical comments. The material from Ifremer was collected during the BIOZAIRE project undertaken by Ifremer in partnership with the oil company “Total” under the scientific leadership of Dr. Myriam Sibuet. The material was sent by Joëlle Galéron (Ifremer, Centre de Brest, Laboratoire Environnement Profond). Dr. Pedro Martinez Arbizu successfully asked for a grant given by the DFG (MA 2557/8-1). Two anonymous referees helped to improve the manuscript. The Zoological Museum, University Hamburg provided a working space.

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Mühlenhardt-Siegel, U. Nannastacidae (Crustacea, Cumacea) of the south-eastern Atlantic deep sea. Mar Biodiv 42, 109–135 (2012). https://doi.org/10.1007/s12526-011-0096-x

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