| 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 |
Diagnosed from all other species of the genus by having the following combination of characters: dorsal-fin rays 7-8; narrow ectopterygoid; head depth 80.0-88.7 % mm HL; snout length 26.7-32.2 % mm HL; scales on longitudinal series 23-25; no spot on dorsal-fin; cycloid scales on the head sides; presence of a caudal-fin base spot; total vertebrae 24; scales on the upper the lateral line 12-14; scales on the lower lateral line 6-8; and absence of a dark dot at the edge of each scale on the midlateral portion of the flank (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 | 12 - 14 |
| 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 - 15 |
| Soft-rays total | 7 - 8 |
| Adipose fin | absent |
| Attributes | more or less truncate |
| Fins number | |
| Spines total | 3 - 3 |
| Soft-rays total | 7 - 9 |
| Pectoral | Attributes more or less normal |
| Spines | |
| Soft-rays 12 - 14 | |
| Pelvics | Attributes more or less normal |
| Position abdominal behind origin of D1 | |
| Spines 1 | |
| Soft-rays 5 - 5 |