Abstract
The holotype of Channa siamensis (Gunther, 1861) was examined and compared with specimens of all other channid species currently considered to be valid (2 genera, 27 species). As all of the examined morphological characters (meristics, morphometrics, coloration, a patch of gular scales, and cephalic sensory pores) of the small-sized hototype (74.2 mm SL) agree with those for C. lucius except for slight gaps in predorsal length and interorbital width (subject to allometric changes), the authors concluded that C. siamensis is a junior synonym of C. lucius (Cuvier in Cuvier and Valenciennes, 1831).
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