A review of the common crab genus Macromedaeus Ward, 1942 (Brachyura, Xanthidae) from China Seas with description of a new species using integrative taxonomy methods

被引：6
作者：
Yuan, Ziming [1 ,2 ]
Jiang, Wei [1 ,3 ]
Sha, Zhongli [1 ,3 ,4 ]
机构：
[1] Chinese Acad Sci, Inst Oceanol, Lab Marine Organism Taxon & Phylogeny, Qingdao, Peoples R China
[2] Univ Chinese Acad Sci, Beijing, Peoples R China
[3] Chinese Acad Sci, Inst Oceanol, Shandong Prov Key Lab Expt Marine Biol, Qingdao, Peoples R China
[4] Qingdao Natl Lab Marine Sci & Technol, Lab Marine Biol & Biotechnol, Qingdao, Peoples R China
来源：
PEERJ | 2022年 / 10卷
基金：
中国国家自然科学基金; 国家重点研发计划; 美国国家科学基金会;
关键词：
Macromedaeus; Xanthidae; New species; Integrative taxonomy; China Seas; CRUSTACEA; DECAPODA; RECORDS; ADULT;
D O I：
10.7717/peerj.12735
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
Macromedaeus is one of the most common xanthid genera in shallow waters of the Indo-West Pacific. In this study, we describe a new species, Macromedaeus hainanensis sp. nov., and report on two newly recorded species, M. quinquedentatus (Krauss, 1843) and M. orientalis (Takeda & Miyake, 1969) from Hainan Island, South China Sea. M. hainanensis is most related to M. distinguendus (De Haan, 1833-1850) and M. orientalis on the carapace shape and granular appearance, but can be distinguished by unique morphological characteristics especially its front, pereopods and male first gonopod. Taxonomic identities of the six Macromedaeus species recorded from China seas are discussed, and a phylogenetic analyzation is performed on Macromedaeus and related taxa based on three mitochondrial and two nuclear markers (12S, 16S, COI, H3, 18S). Integrated taxonomic evidence is used to support the taxonomic status of each species.
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页数：37
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