Distinguished from all species of the genus and from all remaining characids by having a unique color pattern consisting of the combination of presence of a conspicuous, narrow dark midlateral stripe, a single elongated humeral spot, and upper caudal-fin lobe and middlecaudal-fin rays dark, with a clear, rounded ocellated spot present dorsally at anterior third of caudal-fin lobe (Ref. 81201).Description: Dorsal-fin rays ii,9, not including small ossification anterior to first unbranched ray, discernible only in cleared and stained specimens; anal-fin rays iv or v, 23-27; pectoral-fin rays i,13-15; pelvic-fin rays i,7 (Ref. 81201).
- Marinho, M.M.F. and F.C.T. Lima 2009 Astyanax ajuricaba: a new species from the Amazon basin in Brazil (Characiformes: Characidae). Neotrop. Ichthyol. 7(2):169-174. (Ref. 81201)
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