laevis, Unibranchapertura Lacepède [B. G. E.] 1803:657, 658, Pl. 17 (fig. 3) [Histoire naturelle des poissons (Lacepède) v. 5; ref. 4930] No locality. •Synonym of Fluta alba (Zuiew 1793) -- (Okada 1961:718 [ref. 6363]). •Synonym of Monopterus albus (Zuiew 1793) -- (Rosen & Greenwood 1976:57 [ref. 7094], Menon 1999:279 [ref. 24904]). Current status: Synonym of Monopterus albus (Zuiew 1793). Synbranchidae. Habitat: freshwater, brackish.