bengalensis, Ophisternon McClelland [J.] 1844:197, 204, 220, Pl. 11 (fig. 1) [Calcutta Journal of Natural History v. 5 (no. 18); ref. 2928] Bengal, India. Holotype (unique): whereabouts unknown. Lectotype selected by Rosen & Greenwood 1976:51 [ref. 7094], but that specimen is not part of the type series, see Kottelat (2013):309 [ref. 32989], the unique type was a specimen 2 feet long. •Valid as Ophisternon bengalense McClelland 1844 -- (Rosen & Greenwood 1976:51 [ref. 7094], Paxton et al. 1989:436 [ref. 12442], Ataur Rahman 1989:51 [ref. 24860] as bengalensis, Pethiyagoda 1991:205 [ref. 20075], Talwar & Jhingran 1991:780 [ref. 20764], Allen 1991:110 [ref. 21090], Kottelat et al. 1993:101 [ref. 23448], Rainboth 1996:177 [ref. 22772], Bailey & Gans 1998:6 [ref. 23296], Menon 1999:282 [ref. 24904], Pusey et al. 2000:72 [ref. 24466], Lim in Randall & Lim 2000:604 [ref. 25122], Allen et al. 2000:91 [ref. 27467] dated 1845, Allen et al. 2002:174 [ref. 25930], Ataur Rahman 2003:66 [ref. 31338], Hoese & Gates 2006:860 [ref. 28997], Larson et al. 2013:78 [ref. 32988], Kottelat 2013:309 [ref. 32989], Taki et al. 2021:344 [ref. 39830], Jamandre 2023:175 [ref. 40455]). Current status: Valid as Ophisternon bengalense McClelland 1844. Synbranchidae. Distribution: South and Southeast Asia: India to Mekong River basin, southern Cambodia and Vietnam; Philippines. Habitat: freshwater, brackish.