Taxonomic notes on Anthomedusae (Cnidaria: Hydrozoa: Hydroidomedusa) from the south-central South China Sea, with a new
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Taxonomic notes on Anthomedusae (Cnidaria: Hydrozoa: Hydroidomedusa) from the south-central South China Sea, with a new genus and four new species DU Feiyan1, 2, WANG Lianggen1, 2, XU Zhenzu3, HUANG Jiaqi3, GUO Donghui3* 1 South China Sea Fisheries Institute, Chinese Academy of Fishery Science, Guangzhou 510300, China 2 Guangdong Province Key Laboratory of Fishery Ecology and Environment, Guangzhou 510300, China 3 College of Ocean and Earth Sciences, Xiamen University, Xiamen 361102, China
Received 29 June 2017; accepted 23 November 2017 © Chinese Society for Oceanography and Springer-Verlag GmbH Germany, part of Springer Nature 2018
Abstract
This study describes and illustrates four new species Laticanna nanhaiensis Xu, Huang and Wang, gen. nov. and sp. nov., Protiaropsis gemmifera Xu, Huang and Du, sp. nov., Merga nanhaiensis Xu, Huang and Guo, sp. nov. and Rhabdoon apiciloculus Xu, Huang and Du, sp. nov. based on specimens from the south-central South China Sea. Additionally, keys to known genera of family Bythotiaridae and species of genera Protiaropsis, Merga, and Rhabdoon are described. All type specimens are deposited in the South China Sea Fisheries Research Institute, Chinese Academy of Fishery Science. Key words: Hydroidomedusae, Bythotiaridae, Pandeidae, Tubulariidae, new genus and species, South China Sea Citation: Du Feiyan, Wang Lianggen, Xu Zhenzu, Huang Jiaqi, Guo Donghui. 2018. Taxonomic notes on Anthomedusae (Cnidaria: Hydrozoa: Hydroidomedusa) from the south-central South China Sea, with a new genus and four new species. Acta Oceanologica Sinica, 37(10): 112–118, doi: 10.1007/s13131-018-1310-5
1 Introduction This is the second publication in a series of taxonomic revisions of Anthomedusae from the south-central South China Sea, which began with the family Ptilocodiidae (Wang et al., 2017). This study treats the families Bythotiaridae, Pandeidae and Tubulariidae. Based on collections of the authors, one new genus and four new species under the subclass Anthomedusae were identified from the south-central South China Sea. 2 Materials and methods Specimens of the new species were collected from the region (9°05′–11°26′N, 113°54′–114°36′E) in the south-central South China Sea during May 2014. All planktonic samples were collected using a large-type zooplankton net (80 cm diameter, 0.505 mm mesh size) by vertical hauls from depth 200 m to surface. Specimens were fixed in 5% formalin buffered in seawater. Specimens were examined using stereoscopy and light microscopy, and taxonomic identification were undertaken based on the literatures specified in the references section. 3 Taxonomy List and taxonomic position of new genus and species Class Hydroidomedusa Claus, 1877 Subclass Anthomedusae Haeckel, 1879 Order Filifera Kühn, 1913 Family Bythotiaridae Maas, 1905
Genus Laticanna Xu, Huang and Du, gen. nov. Laticanna nanhaiensis Xu, Huang and Wang, sp. nov. Genus Protiaropsis Stechow, 1919 Protiaropsis gemmifera Xu, Huang and
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