tredecemradiatus, Gobius Hamilton [F.] 1822:48, 366 [An account of the fishes found in the river Ganges; ref. 2031] Ganges River basin, India. No types known. Simultaneous synonym of septemradiatus, Murdy (1989) gave precedence to septemradiatus. •Synonym of Periophthalmodon septemradiatus (Hamilton 1822) -- (Murdy 1989:29 [ref. 13628]). •Valid as Periophthalmodon tredecemradiatus (Hamilton 1822) -- (Talwar & Jhingran 1991:962 [ref. 20764]). Current status: Synonym of Periophthalmodon septemradiatus (Hamilton 1822). Gobiidae: Oxudercinae. Distribution: RF 7/16. Habitat: freshwater, brackish.