Species that contain: Sicyopterus and longifilis [ 4 ] records

brevis, Sicyopterus de Beaufort [L. F.] 1912:141 [Zoologischer Anzeiger v. 39 (no. 3); ref. 235] Upper course of Tubah River, western Ceram, Indonesia. Syntypes: ZMA 110981 (2). Type catalog: Nijssen et al. 1982:104 [ref. 19236]. •Valid as Sicyopterus brevis de Beaufort 1912 -- (Kottelat 2013:427 [ref. 32989], Keith et al. 2015:382 [ref. 34328]). •Synonym of Sicyopterus longifilis de Beaufort 1912 -- (Maeda & Saeki 2018:255 [ref. 36339]). Current status: Synonym of Sicyopterus longifilis de Beaufort 1912. Oxudercidae: Sicydiinae. Habitat: freshwater, brackish, marine.

lacrymosus, Sicyopterus Herre [A. W. C. T.] 1927:303, Fig. 1, Pl. 24 (fig. 1) [Monographs, Bureau of Science Manila Monogr. 23; ref. 2104] Abra Province, Philippines. Syntypes: BSMP 12995 and 26205-12 (9) Ba Kalaba, BSMP 10618 (1) Titunod R.; all types presumed destroyed, but seen by Koumans. Type catalog: Koumans 1940:193 [ref. 2676]. •Synonym of Sicyopterus longifilis de Beaufort 1912 -- (Kottelat 2013:428 [ref. 32989], Keith et al. 2015:110 [ref. 34328], Maeda & Saeki 2018:255 [ref. 36339]). Current status: Synonym of Sicyopterus longifilis de Beaufort 1912. Oxudercidae: Sicydiinae. Habitat: freshwater, brackish, marine.

longifilis, Sicyopterus de Beaufort [L. F.] 1912:140 [Zoologischer Anzeiger v. 39 (no. 3); ref. 235] Upper course of Tubah River, western Ceram, Indonesia. Syntypes: ZMA 112562 (orig. 3, now 2). Type catalog: Nijssen et al. 1982:104 [ref. 19236]. •Valid as Sicyopterus longifilis de Beaufort 1912 -- (Allen 1991:195 [ref. 21090], Parenti & Maciolek 1993:963 [ref. 21279], Kottelat et al. 1993:152 [ref. 23448], Larson & Murdy 2001:3602 [ref. 26293], Keith et al. 2012:304 [ref. 31972], Kottelat 2013:428 [ref. 32989], Fricke et al. 2014:172 [ref. 33932], Keith et al. 2015:244 [ref. 34172], Miesen et al. 2016:94 [ref. 34492], Maeda & Saeki 2018:255 [ref. 36339], Fricke et al. 2019:288 [ref. 36673], Amick & Toko 2021:8 [ref. 38599], Keith et al. 2021:148 [ref. 38257], Jamandre 2023:169 [ref. 40455]). Current status: Valid as Sicyopterus longifilis de Beaufort 1912. Oxudercidae: Sicydiinae. Distribution: Western Pacific: southern Japan, Taiwan, Philippines (Luzon, Panay, Negros, Mindanao), Indonesia (Seram, Babar, Ambon), Solomon Islands and Papua New Guinea [anadromous]. Habitat: freshwater, brackish, marine.

panayensis, Sicyopterus Herre [A. W. C. T.] 1927:313, Fig. 5 [Monographs, Bureau of Science Manila Monogr. 23; ref. 2104] San Jose, Antique Province, Panay, Philippines. Lectotype: BSM 13137 (seen by Koumans). Paralectotypes: BSMP 26920-24 (5) destroyed, seen by Koumans. Type catalog: Koumans 1940:193-194 [ref. 2676]. Lectotype designated by Koumans 1940:193. •Valid as Sicyopterus panayensis Herre 1927 -- (Kottelat 2013:428 [ref. 32989]). •Synonym of Sicyopterus longifilis de Beaufort 1912 -- (Keith et al. 2015:110 [ref. 34328], Maeda & Saeki 2018:256 [ref. 36339]). Current status: Synonym of Sicyopterus longifilis de Beaufort 1912. Oxudercidae: Sicydiinae. Habitat: freshwater, brackish, marine.