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Abstract
The parasitic isopod genus Gigantione is first recorded from China. Four species are reported infesting xanthid and goneplacid crabs, three are new to science, and one is a new record from China. Gigantione ishigakiensis Shiino, Citation1941, infesting Liagore rubromaculata (De Haan); G. hainanensis sp. nov., infesting Atergatis floridus (L.) and Atergatis sp., which differs from other recorded species in the shape of its barbula, first oostegite and subrectangular maxilliped; G. rhombos sp. nov., infesting Heteroplax dentata Stimpson, Eucrate alcocki Serene and Eucrate sp., its female distinguished from other species of Gigantione by having a prominent rhombic projection on the barbula; and G. tau sp. nov., infesting Carcinoplax longimanus (De Haan), the female of which differs from other species mainly by its T‐shaped pigmentation on the head. Four brachyuran crabs are first reported as hosts of bopyrids. A list of all brachyuran species so far recorded as bopyrid hosts in China is provided.
Acknowledgements
This study was supported by the National Science Foundation of China (No. 30499341) and Shanxi Province Youth Science Foundation (No. 2007021041). The authors would like to thank Prof. J. Y. Liu (Ruiyu Liu, IOCAS) and Prof. Xinzheng Li (IOCAS) for their guidance in this study and the helpful comments from two anonymous reviewers. We are indebted to collectors of the China/Vietnam Comprehensive Oceanographic Survey to Beibu Gulf (1959–1960, 1962).