aenigma, Nomorhamphus Kobayashi [H.], Masengi [K. W. A.] & Yamahira [K.] 2020:523, Figs. 1-3, 5-6 [Copeia v. 108 (no. 3); ref. 37796] Upper reaches of Cerekang River near by Laroeha Village, Malili River basin, central Sulawesi, Indonesia, 2°27'39.7"S, 121°04'03.0"E. Holotype: MZB 25100. Paratypes: MZB, NSMT, WMSU. •Valid as Nomorhamphus aenigma Kobayashi, Masengi & Yamahira 2020. Current status: Valid as Nomorhamphus aenigma Kobayashi, Masengi & Yamahira 2020. Zenarchopteridae. Distribution: Southeast Asia: Cerekang River drainage, Malili River basin, central Sulawesi, Indonesia. Habitat: freshwater.