Shallow-water Trapezioidea (Decapoda: Brachyura) from the South China Sea, including two new records, and notes on Tetralia glaberrima Herbst, 1790 Author Sun, Yu-Li Qingdao Agricultural University, Qingdao, China. & Laboratory of Marine Organism Taxonomy and Phylogeny, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China. Author Jiang, Wei 0000-0003-4767-8196 Laboratory of Marine Organism Taxonomy and Phylogeny, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China. & Shandong Province Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China. & Laboratory for Marine Biology and Biotechnology, Qingdao Marine Science and Technology Center, Qingdao 266237, China jiangwei@qdio.ac.cn Author Sha, Zhong-Li Laboratory of Marine Organism Taxonomy and Phylogeny, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China. & Shandong Province Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China. & Laboratory for Marine Biology and Biotechnology, Qingdao Marine Science and Technology Center, Qingdao 266237, China text Zootaxa 2024 2024-07-04 5476 1 393 423 http://dx.doi.org/10.11646/zootaxa.5476.1.30 journal article 10.11646/zootaxa.5476.1.30 1175-5326 12681889 D5F945AF-65F2-4AB3-AE00-B4C9BC0CE8F3 Tetralia cinctipes Paulson, 1875 ( Fig. 2C, D ) Tetralia cavimana var. cinctipes Paulson, 1875: 60 , tab. 7 fig. 8. Tetralia cinctipes . — Galil 1986b: 97 , figs. 1–3 ( Taiwan Island ); 1987: 171, fig. 7 ( Indonesia , Australia , New Guinea , Tahiti).— Galil & Clark 1988: 138 , figs. 1A, 3A, 4A, F, 5A, 6A.— Castro 1997a: 64 ; 1997b: 111 , pl. 1A; 1999a: 40; 1999b: 101; 2003: 441; 2009: 277.— Castro et al. 2004: 25 (list).—Castro & Titelius 2008: 320.— Ng et al. 2008: 184 (list). — Limviriyakul 2016: 4 , fig. 4i ( Taiwan Island ).— Maenosono 2017: 38 , fig. 7D, E (the Ryukyus).— Poupin 2018: 37 , fig. 12C ( Mayotte Island ). Tetralia cavimanus Miers, 1884: 537 . Tetralia heterodactyla Heller, 1861: 14 . Tetralia glaberrima f. pullidactyla Patton, 1966: 287— Serène 1984: 282 , pl. 40, fig. C. Tetralia glaberrima pullidactyla Garth, 1971: 185 . Material examined. Nansha Islands : Mischief Reef , 115°32.5’E 9°55.7’N , 11 m , coll. Shaobo Ma, Yuli Sun, Ziming Yuan, 5 May 2022 , 1 pre-adult (3.26 × 2.61 mm ), NS-MJJ-2022-1100; 1 pre-adult (2.71 × 2.29 mm ), NS- MJJ-2022-1101; 1 pre-adult (2.46 × 2.13 mm ), NS-MJJ-2022-1102; 115°34.4’E 9°53.5’N , 8 m , coll. Shaobo Ma , Yuli Sun , Ziming Yuan , 11 May 2022 , 1 male (4.68 × 4.02 mm ), 1 female (5.18 × 4.48 mm ), 7 juveniles (1.80 × 1.45 mm ; 2.51 × 1.94 mm ; 3.58 × 3.07 mm ; 3.53 × 2.84 mm ; 2.53 × 2.25 mm ; 2.62 × 2.33 mm ; 2.54 × 2.31 mm ), NS-MJ-2022-1870, in Acropora cytherea .— Hainan Island: Dong Hai Jiao , coll. Ruixing Lü , 24 October 2021 , 4 males , 4 females , 3 pre-adults (3.68 × 3.23 mm ; 3.79 × 4.01 mm ; 3.61 × 3.18 mm ), SY1011. All found in Acropora ( Acroporidae ) . Geographical distribution. It is distributed in the Red Sea and Western Pacific ( Castro et al. 2004 ) . Remarks. Tetralia cinctipes generally inhabits densely branched corals. It always occurs as a few heterosexual pairs as well as some juveniles in a coral colony.