Specimens of Leptopanchax opalescens: (1) female, 24.0 mm TL, hyaline bode and fins; (2) male, 28.8 mm TL). Letters indicating patterns of body and fin color in male: (a) red band on the distal margins of the dorsal and anal fins; (b) gold band below and parallel to the red band in the dorsal fin; (c) red body with diffuse light spots; (d) vermiculate red spots in the anal fin. More photos are available in the Fig. S1). Scale bar: 5 mm.