filamentosa, Gymnochanda Fraser-Brunner [A.] 1955:210, Fig. 4 [Bulletin of the Raffles Museum No. 25 (dated Dec. 1954); ref. 1498] Singapore. Holotype and paratypes: BMNH 1992.11.23.1-5 (6) Raffles Museum (now mixed with holotype). •Valid as Gymnochanda filamentosa Fraser-Brunner 1955 -- (Roberts 1989:160 [ref. 6439], Kottelat et al. 1993:105 [ref. 23448], Roberts 1995:267 [ref. 22559], Kottelat & Widjanarti 2005:164 [ref. 28284] as cf, filamentosa, Tan & Lim 2011:61 [ref. 31587], Kottelat 2013:321 [ref. 32989], Tan & Lim 2014:688 [ref. 33503]). Current status: Valid as Gymnochanda filamentosa Fraser-Brunner 1955. Ambassidae. Distribution: Singapore?, Borneo, Sumatra and Malaysia. Habitat: freshwater, brackish.