Uca lactea (De Haan, 1835)

Ocypode (Gelasimus) lactea De Haan, 1835: 54, pl. 15, fig. 5 [type locality Japan].

Gelasimus lacteus —H. Milne Edwards 1852: 150 (not pl. 4(16)) (Macao?); Stimpson 1858: 100; 1907: 108 [Macao]; Kingsley 1880: 149, pl. 10(28) (part); Cano 1889: 92, 234 [Xiamen]; Shen 1940: 231 [Hong Kong].

Uca lactea — Balss 1922: 143 [list]; Gee 1926: 165 [Xiamen; Chin Bey; Hong Kong; Macao]; Kellogg 1928: 356 [list]; Gordon 1931: 528 [list]; Shen, 1936: 76 [Hainan]; Jones & Morton 1994: 28, pls. 2G, H, 3E, F, fig. 6 [Hong Kong]; Yamaguchi 1994: 165 [Xiamen]; Cai et al. 1998: 117 [Hong Kong]; Ying et al. 1999: 34 [Zhejiang]; Xiao & Li 2003: 61 [Naozhou, Zhanjiang, Guangdong]; Kwok & Tang 2006: 4, figs. 10, 11 [Hong Kong]; Yang et al. 2008: 807 [East China Sea; northern South China Sea].

Uca lacteus — Shen & Dai 1964: 111, unnumbered text-fig. [Fujian; Hainan]; Yang & Liu 1996: 189 [Zhanjiang, Guangdong].

Uca (Celuca) lactea lactea — Crane 1975: 300, pl. 40A, B, figs. 19A, 54J-JJ, 69E [Xiamen; Hong Kong]; Dai et al. 1986: 425, pl. 59(2), fig. 236(1) [Fujian; Hainan].

Uca (Celuca) lactea — Dai & Yang 1991: 466, pl. 59(2), fig. 236(1) [Fujian; Hainan]; Lu 1996: 165 [Xiamen, Fujian]; Lai & He 1998: 172 [Guangxi]; Liang et al. 2005: 22 [Leizhou, Guangdong].

Uca lactea lactea — Li 2004: 21 [Fujian]; Chen 1991: 411, fig. 388 [Zhejiang].

Uca (Paraleptuca) lactea —Ng et al. 2008: 241 [list].

Uca (Austruca) lactea — Naderloo et al. 2010: 19, figs. 10a–f, 11a–c, 14a, 15a, 18a, b [Fujian; Hainan].

Material examined. Fujian: 2 3 (19.5 mm, one damaged) (MBMCAS 166306), Xiunpu, Quanzhou, coll. H.-L. Chen, 21 Jun. 1975; 7 3 (6.89–15.97 mm), 1 Ƥ (12.15 mm) (NCHUZOOL 13374), Jimei, Xiamen, coll. H.-T. Shih & J.-H. Lee, 1 Jul. 2004. Hong Kong: 5 3 (11.96–16.37 mm), 3 ƤƤ (11.16–13.14 mm) (NCHUZOOL 13250), Tai Tam, coll. B. Chan, Jul. 2004; 1 3 (12.14 mm), 1 Ƥ (12.32 mm) (NCHUZOOL 13375), Tai Tam, coll. B. Chan, 27 Oct. 2008. Hainan: 5 3 (13.26–14.14 mm), 3 ƤƤ (10.82–11.87 mm) (NCHUZOOL 13376), Dongzhai, coll. H.-T. Shih & J.-H. Lee, 23 Jun. 2004. Guangxi: 7 3 (11.25–20.02 mm), 1 Ƥ (10.9 mm) (NCHUZOOL 13377), Qinzhou, coll. H.-T. Shih & Y.-H. Wang, 10 May 2009.

Distribution. Japan, Korea, China, Taiwan, and Vietnam (cf. Table 1).

Remarks. Uca lactea is one of the most common species in East Asia and Vietnam. It ranges from Korea (northernmost distribution), Japan, continental China, Taiwan, northern Hainan, to northern Vietnam (southernmost distribution) (cf. Table 1; Kamita 1941; Dai et al. 1986; Dai & Yang 1991; Shih 1994; Kosuge et al. 1997; Yoshigou 2001; Shih et al. 2008, 2009).