| Main Ref. | Carvalho, F.R., F. Langeani, C.S. Miyazawa and W.P. Troy, 2008 |
| Appearance refers to | |
| Bones in OsteoBase |
| Specialized organs | |
| Different appearance | |
| Different colors | |
| Remarks | Males: fins reddish, distal margin of anal fin relatively straight and pelvic and anal fins with small hooks in mature specimens. Females: fins yellowish, distal margin of anal fin slightly convex and hooks absent (Ref. 74929). |
| Striking features | |
| Body shape lateral | short and / or deep |
| Cross section | |
| Dorsal head profile | clearly convex |
| Type of eyes | |
| Type of mouth/snout | |
| Position of mouth | terminal |
| Type of scales | cycloid scales |
| Diagnosis |
Distinguished from all other members of the genus Hyphessobrycon by the following combination of characters: black humeral spot, slightly diffuse at its tips; presence of caudal-peduncle blotch; midlateral longitudinal body stripe, conspicuous in its posteriormost portion , from vertical through anterior third of pectoral fin to caudal-peduncle blotch, reaching to the tips of the middle caudal rays; iii,15 - iv,9 anal fin rays (mode iv,17); upper jaw length 42.3-49.5% HL; 2-5 teeth (mode 3) on maxilla; all fins reddish orange in males and yellowish in females (Ref. 74929). Description: Dorsal fin ii,9; Anal fin iii,15 - iv,19; Pectoral fin i9 - i13; Pelvic fin i5 - i7 (Ref. 74929). |
| Ease of Identification |
| Lateral Lines | Interrupted: No |
| Scales on lateral line | 10 - 17 |
| Pored lateral line scales | |
| Scales in lateral series | |
| Scale rows above lateral line | 5 - 6 |
| Scale rows below lateral line | 4 - 5 |
| Scales around caudal peduncle | 13 - 14 |
| Barbels | |
| Gill clefts (sharks/rays only) | |
| Gill rakers | |
| on lower limb | |
| on upper limb | |
| total | |
| Vertebrae | |
| preanal | 16 - 16 |
| total | 32 - 33 |
| Attributes | no striking attributes |
| Fins number | |
| Finlets No. | Dorsal |
| Ventral | |
| Spines total | |
| Soft-rays total | 11 - 11 |
| Adipose fin | present |
| Attributes | forked |
| Fins number | |
| Spines total | |
| Soft-rays total | 18 - 23 |
| Pectoral | Attributes more or less normal |
| Spines | |
| Soft-rays 10 - 14 | |
| Pelvics | Attributes more or less normal |
| Position abdominal before origin of D1 | |
| Spines | |
| Soft-rays 6 - 8 |