The first report of the genus Willenstenhelia (Copepoda: Harpacticoida: Miraciidae) from the China seas, with descriptio
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The first report of the genus Willenstenhelia (Copepoda: Harpacticoida: Miraciidae) from the China seas, with description of a new species MA Lin1, 2, LI Xinzheng1, 2, 3, 4* 1 Department of Marine Organism Taxonomy and Phylogeny, Institute of Oceanology, Chinese Academy of Sciences,
Qingdao 266071, China 2 Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao, 266071, China 3 Graduate University, University of Chinese Academy of Sciences, Beijing 100049, China 4 Laboratory for Marine Biology and Biotechnology, Pilot National Laboratory for Marine Science and Technology
(Qingdao), Qingdao 266237, China Received 30 June 2017; accepted 23 December 2017 © Chinese Society for Oceanography and Springer-Verlag GmbH Germany, part of Springer Nature 2018
Abstract
A new species Willenstenhelia mirabilipes sp. nov. (Copepoda: Harpacticoida: Miraciiidae) is described based on specimens collected from the South China Sea. This is also the first report of the genus Willenstenhelia from the China seas. The new species differs from congeners by the combined characters: all somites without spinules on surface except anal somite; third segment of female P4 exopod with two inner setae; female P5 baseoendopodal lobe with four elements and P5 exopod with sharp apical spine; caudal ramus about six times as long as broad. Key words: Crustacea, new species, taxonomy Citation: Ma Lin, Li Xinzheng. 2018. The first report of the genus Willenstenhelia (Copepoda: Harpacticoida: Miraciidae) from the China seas, with description of a new species. Acta Oceanologica Sinica, 37(10): 195–201, doi: 10.1007/s13131-018-1306-1
1 Introduction Miraciidae Dana, 1846 is the second largest family in the order Harpacticoida Sars, 1903, which can inhabit a wide range of sediment types from flocculent mud to coralline debris, primarily in intertidal and subtidal areas of continental shelves (Chullasorn, 2009). Ten benthic miraciid species identified into species level were reported from China seas until now (Mu and Gee, 2000; Mu and Huys, 2002; Huys and Mu, 2008; Ma and Li, 2011, 2017), but no Willenstenhelia species had been previously reported from China seas before the new species described in this paper. The miraciid genus Willenstenhelia Karanovic and Kim, 2014 is a small genus, just including three species (Walter, 2018) before the new species been found. Karanovic and Kim (2014) established the genus based on morphology characters and molecular data, meanwhile they discussed the different morphology of the genus with other similar genera. Several specimens of harpacticoid copepods were sorted from benthic samples collected off the Hainan Island, the South China Sea in 2007. These specimens are proved to belong to an unknown species of Willenstenhelia, which we here describe as new to science. 2 Materials and methods The type specimens were collected from the South China Sea (Fig. 1), fixed in 10% formalin. The specimens were extracted from benthic samples using a 38 μm sieve and the colloidal silica Ludox TM-50 suspension centrifugati
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