Nomorhamphus aenigma Kobayashi, Masengi & Yamahira, 2020

Family:  Zenarchopteridae (Internally fertilized halfbeaks)
Max. size:  6.09 cm SL (male/unsexed)
Environment:  pelagic; freshwater
Distribution:  Asia: Indonesia.
Biology:  This species was collected from the river that belongs to the Malili River basin. The type locality is approximately 10 m in width and 1.5 m in depth, partially shaded by forest canopy, and has mud and gravel bottom. Associated species: Nomorhamphus rex, Oreochromis niloticus, Oryzias dopingdopingensis, Osteochilus vittatus, Redigobius penango, Telmatherina sp. (Ref. 123153).
IUCN Red List Status: Not Evaluated (N.E.) Ref. (130435)
Threat to humans:  harmless

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