Gobiopsis macrostoma, also known as longjaw goby and lockjaw goby, is a species of goby found in the Indo-West Pacific from western India to the Mekong River.Talwar, P.K. and A.G. Jhingran, 1991. Inland fishes of India and adjacent countries. Volume 2. A.A. Balkema, Rotterdam.
Description This species reaches a length of .
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