| Main Ref. | Ottoni, F.P. and W.J.E.M Costa, 2009 |
| Appearance refers to | |
| Bones in OsteoBase |
| Specialized organs | |
| Different appearance | |
| Different colors | |
| Remarks |
| Striking features | |
| Body shape lateral | |
| Cross section | |
| Dorsal head profile | |
| Type of eyes | |
| Type of mouth/snout | |
| Position of mouth | |
| Type of scales | |
| Diagnosis |
Distinguished from all other species of the genus by the following combination of characters: scales on the longitudinal series 21-22; a dark spot on dorsal fin above trunk bar 5, and usually above trunk bar 4; head depth 90.2-96.3 % mm HL; cycloid scales on head sides; dorsal-fin rays 9-10; anal-fin rays 8-9; total vertebrae 24; scales on the upper lateral line 14-15; scales on the lower lateral line 6-8; absence of a dark dot at the edge of each scale on the midlateral portion of the flank; and a wide ectopterygoid (Ref. 80972). |
| Ease of Identification |
| Lateral Lines | Interrupted: No |
| Scales on lateral line | |
| Pored lateral line scales | |
| Scales in lateral series | |
| Scale rows above lateral line | 14 - 15 |
| Scale rows below lateral line | 6 - 8 |
| Scales around caudal peduncle | |
| Barbels | |
| Gill clefts (sharks/rays only) | |
| Gill rakers | |
| on lower limb | |
| on upper limb | |
| total | |
| Vertebrae | |
| preanal | 12 - 12 |
| total | 24 - 24 |
| Attributes | |
| Fins number | 1 |
| Finlets No. | Dorsal |
| Ventral | |
| Spines total | 14 - 14 |
| Soft-rays total | 9 - 10 |
| Adipose fin | absent |
| Attributes | more or less truncate |
| Fins number | |
| Spines total | 3 - 3 |
| Soft-rays total | 8 - 9 |
| Pectoral | Attributes more or less normal |
| Spines | |
| Soft-rays 11 - 13 | |
| Pelvics | Attributes more or less normal |
| Position abdominal | |
| Spines 1 | |
| Soft-rays 5 - 5 |