siamensis, Neostethus Myers [G. S.] 1937:139 [Proceedings of the United States National Museum v. 84 (no. 3007); ref. 3115] Estuary of the Chantabun River, southeastern Thailand. Holotype (unique): USNM 102140. •Synonym of Neostethus lankesteri Regan 1916 -- (Parenti 1989:269 [ref. 13486], Shibukawa et al. 2012:44 [ref. 32037], Kunlapapuk et al. 2012:119 [ref. 32192], Kottelat 2013:285 [ref. 32989]). Current status: Synonym of Neostethus lankesteri Regan 1916. Phallostethidae. Habitat: freshwater, brackish.