This species is differentiated from its congeners in having the following characters: elongated dorsal fins in males; caudal spot diamond-shaped; humeral spot vertically elongated; maxillary teeth hexacuspidate; anal fin rays 22-23; lateral line scales 30-31 (Ref. 72430).Description: Dorsal fin rays ii,8,I; anal fin rays 22-23 (iii-iv, 19-20); pectoral fin rays I,9; pelvic fin rays I,6-7. Color in life dark gray caudal spot, faintly reaching tip of median caudal fin, anteriorly as a pale stripe continuous with the faint humeral spot; body sides and head golden, mandibular region orange, nostrils red, iris red above, bright metallic blue below; dorsal fin pale crimson with a dark gray line on anterior edge; adipose, pectoral, pelvic, and anal fins orange, a dark gray line on distal margin of anal and another similar line on anterior margin of pelvic; caudal fin yellow, with a bright yellow spot on the base of each lobe (Ref. 72430).
- Costa, W.J.E.M. and J. GÃ©ry 1994 Two new species of the genus Hyphessobrycon (Characiformes: Characidae) from the rio XingÃº basin, central Brazil. Rev. Fr. Aquariol. 20(3):71-76. (Ref. 72430) http://www.fishbase.org/references/FBRefSummary.php?id=72430&speccode=46320
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