cinereus, Pneumabranchus McClelland [J.] 1843:411, Pl. 25 (fig. 3) [Calcutta Journal of Natural History v. 4 (no. 4) (for 1844); ref. 2927] Chusan, China. No types known. •Synonym of Fluta alba (Zuiew 1793) -- (Okada 1961:718 [ref. 6363]). •Synonym of Monopterus albus (Zuiew 1793) -- (Rosen & Greenwood 1976:57 [ref. 7094] but with later source and author as Richardson). •Not treated in Zhang et al. 2016:192 [ref. 34477]. Current status: Synonym of Monopterus albus (Zuiew 1793). Synbranchidae. Habitat: freshwater, brackish.