fossorius, Amphipnous Nayar [K. K.] 1952:311, Fig. 1 [Proceedings of the Indian Academy of Sciences Section B (Animal Sciences) v. 34 (no. 6) [for 1951]; ref. 12904] Marshy area adjoining Karamanai River near Trivandrum, Travancore, India. Syntypes: Marine Biol. Lab., Trivandrum, Travancore, India. Author sometimes seen as Nair. •Valid as Monopterus fossorius (Nayar 1952) (sometimes seen as 1951) -- (Rosen & Greenwood 1976:59 [ref. 7094], Talwar & Jhingran 1991:777 [ref. 20764], Bailey & Gans 1998:6 [ref. 23296], Menon 1999:281 [ref. 24904], Gopi 2002:139 [ref. 27553], Britz et al. 2011:57 [ref. 31404], Britz et al. 2016:321 [ref. 34914]). •Valid as Ophichthys fossorius (Nayar 1952) -- (Britz et al. 2020:14 [ref. 37335], Britz et al. 2021:4 [ref. 38747], Britz et al. 2023:12 [ref. 40009]). Current status: Valid as Ophichthys fossorius (Nayar 1952). Synbranchidae. Distribution: South Asia: southern Western Ghats, Kerala (India). Habitat: freshwater.