Psilorhynchus Ngathanu (Psilorhynchus ngathanu) is a ray-finned fish of the family Psilorhynchidae. It inhabits freshwater waters. This species can reach a maximum total length of 6 cm. With a trophic level of 2.9, it is a low-level carnivore, feeding on invertebrates and small organisms.
Dorsal soft rays (total): 12; Anal soft rays: 8; Vertebrae: 24 - 35. Distinguished from its congeners in having a combination of the following characters: midventral region between pectoral fins scaleless; two rows of spots on dorsal-fin rays present; two black bars on caudal fin present, one complete in middle and another incomplete just posterior to caudal-fin base; lateral line with squarish to rectangular black patches, anterior patches obscured by the background pigmentation, patches decrease in size posteriorly; pectoral fin with v-vi unbranched rays; caudal fin with 10 + 9 principal rays; and lateral line with 32-33 . : elongated.
Behavioural data for Psilorhynchus Ngathanu is currently being reviewed.
Freshwater; benthopelagic. Tropical
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