formosa, Herrea Smith [H. M.] 1931:40 [Proceedings of the United States National Museum v. 79 (no. 2873); ref. 4047] Koh Chula, off mouth of Chantaburi River, Thailand. Holotype (unique): KUMF 0177 (poor condition) or 0178. Type catalog: Monkolprasit 1969:7 [ref. 23217]. Original holotype, USNM 90324, not received at USNM but is still at KUMF; neotype (USNM 119611) designated by H. M. Smith 1945:505 [ref. 4056] if needed. •Valid as Parioglossus formosus (Smith 1931) -- (Yoshino & Senou in Masuda et al. 1984:247 [ref. 6441], Rennis & Hoese 1985:177 [ref. 5859], Allen & Swainston 1988:136 [ref. 25477], Kottelat et al. 1993:156 [ref. 23448], Suzuki & Senou 1994:285 [ref. 21557], Suzuki et al. 1994:2 [ref. 24344], Allen 1997:218 [ref. 23977], Chen et al. 1997:133 [ref. 22867], Randall et al. 1997:537 [ref. 25919], Myers 1999:262 [ref. 23965], Larson in Randall & Lim 2000:641 [ref. 25122], Nakabo 2000:1263 [ref. 25182], Larson 2001:3608 [ref. 26296], Nakabo 2002:1263 [ref. 26193], Allen & Adrim 2003:61 [ref. 26830], Shibukawa et al. in Kimura & Matsuura 2003:188 [ref. 27510], Williams & Lecchini 2004:2 [ref. 27684], Randall 2005:565 [ref. 28239], Keith et al. 2004:343 [ref. 28060], Wang & Winterbottom 2006:25 [ref. 28502], Hoese 2006:1707 [ref. 28998], Shibukawa 2009:291 [ref. 30449], Suzuki et al. 2010:31 [ref. 30805], Allen & Erdmann 2012:996 [ref. 31980], Kottelat 2013:436 [ref. 32989], Ghaffar in Motomura et al. 2021:75 [ref. 38121]). Current status: Valid as Parioglossus formosus (Smith 1931). Microdesmidae: Ptereleotrinae. Distribution: Eastern Indian Ocean, western Pacific: Malaysia and Indonesia east to Philippines and Vanuatu, north to Ryukyu Islands (Japan), south to northern Australia. Habitat: brackish, marine.