fluviatilis, Raia Hamilton [F.] 1822:1 [An account of the fishes found in the river Ganges; ref. 2031] Ganges River, India. No types known. Marginally available, even Hamilton did not feel he could describe it adequately; see Roberts 1998:271-275 [ref. 23552] and Roberts 2007:286 [ref. 29413]. •Valid as Himantura fluviatilis (Hamilton 1822) -- (Compagno & Roberts 1982:325 [ref. 8489], Talwar & Jhingran 1991:44 [ref. 20764], Habib & Islam 2020:Supplementary table p. 3 [ref. 38321], Haroon & Kibria 2021:103 [ref. 39241]). •Possibly based on same species tentatively identified as Pastinachus sephen (Forsskål 1775) -- (Roberts 1998:268 [ref. 23552]). •Synonym of Pastinachus sephen (Forsskål 1775) -- (Last et al. 2005:1 [ref. 28346], Kottelat 2013:28 [ref. 32989]). •A junior synonym of P. sephen or a valid species of Pastinachus -- (Roberts 2007:286 [ref. 29413]). •Mention -- (Last & Manjaji-Matsumoto 2010:115 [ref. 30854]). •Synonym of Pastinachus sephen (Fabricius 1775). Current status: Synonym of Pastinachus sephen (Fabricius 1775). Dasyatidae: Hypolophinae. Habitat: freshwater, brackish, marine.