Hemirhamphus brachynotopterus Bleeker, 1853 Dermogenys brachynotopterus, the Gangetic halfbeak, is a species of viviparous halfbeak.

[1][2][3] The Gangetic halfbeak is native to India[1][2] and Bangladesh.

[4] Although IUCN] and FishBase state that it is only known from the holotype discovered in the Hooghly estuary in West Bengal, India,[1][2] IUCN postulates that Dermogenys brachynotopterus and Dermogenys burmanica could be the same species, with D. brachynotopterus having the taxonomic seniority.

[1] It is a pelagic species of fish, and inhabits the brackish waters of estuaries.

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