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Diagnosis. A species of the genus Muraenichthys with the following combination of characters: head 12 – 15 % TL, tail 57 – 64 % TL; dorsal-fin origin anterior to a vertical through mid-anus, horizontal distance from the origin to the vertical 42 – 64 % of trunk length; eyes large, 6.6 – 10 % HL; snout to interorbital region not concaved along dorsal midline; all teeth relatively slender and pointed, rows uniserial or biserial anteriorly and uniserial posteriorly; vomer relatively slender; predorsal vertebrae 24 – 32, preanal 42 – 46 and total 128 – 138; MVF 27 - 44 - 134.