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A New Species in the Marphysa sanguinea Complex (Annelida, Eunicidae) from Hong Kong
Zhi Wang1, Yanjie Zhang1, Jian-Wen Qiu1
1Department of Biology, Hong Kong Baptist University, Kowloon, Hong Kong, China; HKBU Institute of Research and Continuing Education, Shenzhen, China.
Abstract:
Zhi Wang, Yanjie Zhang, and Jian-Wen Qiu (2018) Marphysa hongkongensa n. sp. (Annelida: Eunicidae) is described based on samples from the intertidal zone of Tolo Harbour, Hong Kong. This new species belongs to the Marphysa sanguinea species complex. It is characterized by a subacicular hook from chaetiger 26-58 to the posterior end, branchiae with up to 5-10 filaments from chaetiger 14-35 to the posterior end, and four types of pectinate chaetae. Molecular analyses indicated that the cytochrome oxidase c subunit I gene and 16S RNA gene of Marphysa hongkongensa diverged from the corresponding sequence of the closest related species of Marphysa in GenBank by 19.5% and 12.1%, respectively. An identification key is provided for species in the Marphysa sanguinea complex along the Chinese coast.
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