siamensis, Vaimosa Fowler [H. W.] 1934:157, Fig. 125 [Proceedings of the Academy of Natural Sciences of Philadelphia v. 86; ref. 1417] Silom Canal, Bangkok, Thailand. Holotype (unique): ANSP 60025. Type catalog: Böhlke 1984:110 [ref. 13621]. •Valid as Calamiana siamensis (Fowler 1934) -- (Rainboth 1996:204 [ref. 22772]). •Valid as Psudogobiopsis siamensis (Fowler 1934) -- (Zhong & Chen 1997:78, 81 [ref. 23372] but as siamenensis and siamemensis, Kottelat & Lim 1996:247 [ref. 23210], Ng & Tan 1999:364 [ref. 24159], Larson et al. 2008:143 [ref. 29532], Huang et al. 2014:146 [ref. 33157]). •Valid as Eugnathogobius siamensis (Fowler 1934) -- (Larson 2009:148 [ref. 30125], Kottelat 2013:406 [ref. 32989], Sulaiman et al. 2018:36 [ref. 35802], Ng et al. 2019:533 [ref. 36606], Parenti 2021:312 [ref. 38603], Taki et al. 2021:467 [ref. 39830], Chan et al. 2023:140 [ref. 40365]). Current status: Valid as Eugnathogobius siamensis (Fowler 1934). Oxudercidae: Gobionellinae. Distribution: Southeast Asia: southern China, Vietnam and south to Indonesia. Introduced in Hong Kong (China). Habitat: freshwater.