Dermogenys sumatrana (Bleeker, 1854)

Zainal Abidin, Danial Hariz, Lavoué, Sébastien, Mohd Abu Hassan Alshari, Norli Fauzani, Mohd. Nor, Siti Azizah, A. Rahim, Masazurah & Mohammed Akib, Noor Adelyna, 2021, Ichthyofauna of Sungai Merbok Mangrove Forest Reserve, northwest Peninsular Malaysia, and its adjacent marine waters, Check List 17 (2), pp. 601-631 : 620

Dermogenys sumatrana (Bleeker, 1854)

Material examined. MALAYSIA • 3, 39– 56 mm TL; Kedah State, Kampung Batu Lintang, Pompang Batu Lintang ; 05.625°N, 100.394°E; 17 Jul. 2019; Sébastien Lavoué leg.; USMFC (105) 00004 .

Identification. A small species of the family Zenarchopteridae . Maximum TL (from the upper jaw tip) about 60 mm ( Meisner 2001). Body slender and cylindrical, with elongated lower jaw and short triangular upper jaw; upper jaw longer than wide; male with upside-down triangular spiculus of male modified anal fin (i.e., andropodium; Meisner 2001) with distal tip oriented posteriorly; body light brown with translucent fins; thick black line along dorsum from occiput to caudal fin base.

Dermogenys sumatrana is known from Lake Maninjau, West Sumatra (type locality), Borneo and south of Thailand ( Meisner 2001; Lheknim 2004), and in the mangrove estuary of Sikao Creek ( Tongnunui et al. 2002). This species is collected in the less saline part of the Merbok river estuary.