title: Species diversity of fiddler crabs, genus Uca Leach, 1814 (Crustacea: Ocypodidae), from Taiwan and adjacent islands, with notes on the Japanese species.
abstract: The fiddler crabs, genus Uca Leach, 1814 (Decapoda, Ocypodidae) of Taiwan, including the offshore islands of Penghu (Pescadores), Kinmen (Quemoy), Matsu (Matzu), and Dongsha (Pratas), are revised, with the recognition of five subgenera and 15 species, viz. Uca (Austruca) Bott, 1973: U. lactea (De Haan, 1835), U. perplexa (H. Milne Edwards, 1837), U. triangularis (A. Milne-Edwards, 1873); U. (Gelasimus) Latreille, 1817: U. borealis Crane, 1975, U. jocelynae Shih, Naruse & Ng, 2010, U. tetragonon (Herbst, 1790), U. vocans (Linnaeus, 1758); U. (Paraleptuca) Bott, 1973: U. crassipes (White, 1847), U. splendida (Stimpson, 1858); U. (Tubuca) Bott, 1973: U. acuta (Stimpson 1858), U. arcuata (De Haan, 1835), U. coarctata (H. Milne Edwards, 1852), U. dussumieri (H. Milne Edwards, 1852), U. paradussumieri (Bott, 1973); and U. (Xeruca) Shih, 2015: U. formosensis Rathbun, 1921. Among them, U. acuta, U. paradussumieri, and U. vocans are confirmed to be distributed in Taiwan. Uca formosensis is endemic to Taiwan. The Uca species of the main islands of Japan are also listed. Four species (U. arcuata, U. lactea, U. crassipes and U. borealis) are known, but the recent additional records of U. perplexa and U. vocans need further confirmation. Except U. acuta, U. borealis, U. formosensis, U. lactea, and U. paradussumieri, other 10 Taiwanese species can be found from the Ryukyus too. Only one endemic species, U. boninensis, is reported from the Ogasawara (Bonin) Islands. A key to the 18 species of Uca found in East Asia is also provided in this study.
authors.affiliation: Department of Life Science, National Chung Hsing University, 250, Kuo Kuang Road, Taichung 402, Taiwan.; Email: htshih@dragon.nchu.edu.tw.
authors.forename: Hsi-Te
authors.initials: HT
authors.lastname: Shih
authors.affiliation: Center for General Education, National University of Tainan, 33, Sec. 2, Shulin Street, Tainan City 700, Taiwan.; Email: unknown.
authors.forename: Jung-Hsiang
authors.initials: JH
authors.lastname: Lee
authors.affiliation: Department of Environment Biology and Fishery Science, National Taiwan Ocean University, 2 Pei-Ning Road, Keelung 202, Taiwan.; Email: pingho@mail.ntou.edu.tw.
authors.forename: Ping-Ho
authors.initials: PH
authors.lastname: Ho
authors.affiliation: 53, Chenggong 11th St., Zhubei City, Hsinchu County 302, Taiwan; Email: unknown.
authors.forename: Hung-Chang
authors.initials: HC
authors.lastname: Liu
authors.affiliation: National Taiwan Museum, 6F, 71 Guanqian Road, Taipei 10047, Taiwan. 1-1 Alley 24, Lane 417 Tzechiang Road, New Taipei City 25162, Taiwan; Email: unknown.
authors.forename: Chia-Hsiang
authors.initials: CH
authors.lastname: Wang
authors.affiliation: Faculty of Fisheries, Kagoshima University, Shimoarata 4-50-20, Kagoshima City, 890-0056, Japan; Email: unknown.
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Suzuki
authors.affiliation: Department of Life Science, National Chung Hsing University, 250, Kuo Kuang Road, Taichung 402, Taiwan.; Email: htshih@dragon.nchu.edu.tw.
authors.forename: Shao-Jyun
authors.initials: SJ
authors.lastname: Teng
mesh_terms: D063147:Animal Distribution; D000825:Animal Structures / Q000033:anatomy & histology / Q000254:growth & development; D000818:Animals; D044822:Biodiversity; D049628:Body Size; D003386:Brachyura / Q000033:anatomy & histology / Q000145:classification* / Q000254:growth & development; D017753:Ecosystem; D005260:Female; D062312:Islands; D007564:Japan; D008297:Male; D009929:Organ Size; D013624:Taiwan