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A new species of Leodamas Kinberg, 1866 (Polychaeta: Orbiniidae) from the Yellow Sea and the East China Sea

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Based on polychaete specimens collected from coastal areas of China in 1959, a new species of the family Orbiniidae, Leodamas sinensis sp. nov. is described in the present paper. The new species can be distinguished from its cogeners by the combination of following characters: branchiae present from chaetiger 5; each thoracic neuropodial postchaetal lobe possessing broad tori, with a digital to triangular-shaped papilla at its midlength; 4 or 5 vertical rows of uncini and one posterior row of accompany capillaries in thoracic neuropodia; acicula present in both abdominal notopodia and neuropodia, slightly or distinctly projecting. A key to all known species of the genus is provided.

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The authors thank Danny Eibye-Jacobsen (Zoological Museum, Natural History Museum of Denmark) and Gil Joao (University of Algarve, Faculty of Marine and Environmental Sciences; Centre of Marine Sciences) for providing important references. The authors are also grateful to the managers of the MBMCAS for their help in sorting the specimens.

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Correspondence to Xinzheng Li.

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Foundation item: The National Natural Science Foundation of China under contract Nos 31872194 and 41806179; the Scientific and Technological Innovation Project of the Pilot National Laboratory for Marine Science and Technology (Qingdao) under contract No. 2015ASKJ01.

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Sun, Y., Sui, J. & Li, X. A new species of Leodamas Kinberg, 1866 (Polychaeta: Orbiniidae) from the Yellow Sea and the East China Sea. Acta Oceanol. Sin. 37, 130–135 (2018).

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