Dichotomyctere nigroviridis (Marion de Procé, 1822)

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 : 627-628

Dichotomyctere nigroviridis (Marion de Procé, 1822)

Material examined. MALAYSIA • 2, 45– 102 mm TL; Kedah State, Semeling, Semeling Bridge ; 5.680°N, 100.470°E; 17 Jul. 2019; Sébastien Lavoué leg.; USMFC (40) 00011 .

Identification. Maximum TL less than 200 mm ( Dekkers 1975). Body stout, dorsal and ventral profiles convex. Dor- sum and upper sides greenish gold with irregular rounded spots of diameter equal to or smaller than eye’s diameter, evenly scattered; ventrolateral surface light whitish; pectoral fins translucent, dorsal and anal fins plain; caudal fin with fainted crossbars (larger specimen).

Dichotomyctere nigroviridis (until recently known as Tetraodon nigroviridis ; see Igarashi et al. 2013 and Kottelat 2013 for current phylogenetic and nomenclatural information) is an important research model in genetics because of the small size and compact nature of its genome, leading to its complete sequencing early in the

21th century ( Jaillon et al. 2004). This species is known from this region since the work of Cantor (1849), who described Tetrodon simulans Cantor, 1849 which is currently considered as a junior synonym of D. nigroviridis .