| Main Ref. | Moreira, C.R., F.C.T. Lima and W.J.E.M. Costa, 2002 |
| Appearance refers to | |
| Bones in OsteoBase |
| Specialized organs | |
| Different appearance | |
| Different colors | |
| Remarks |
| Striking features | |
| Body shape lateral | |
| Cross section | |
| Dorsal head profile | clearly convex |
| Type of eyes | |
| Type of mouth/snout | |
| Position of mouth | terminal |
| Type of scales | cycloid scales |
| Diagnosis |
Males with a broad, convex anal-fin lobe formed by the 12-14 anteriormost rays, which are more elongated and thickened than the remaining rays; pelvic bones elongated, protruding through the body wall in some of the largest specimens; dorsal and pelvic fins not elongated in mature males; caudal peduncle blotch asymmetric and not as dark in males; all dentary teeth cusps in a straight line and 3 teeth in the maxilla (Ref. 42938). |
| Ease of Identification |
| Lateral Lines | Interrupted: No |
| Scales on lateral line | |
| Pored lateral line scales | 6 - 8 |
| Scales in lateral series | 27 - 35 |
| Scale rows above lateral line | |
| Scale rows below lateral line | |
| Scales around caudal peduncle | 10 - 13 |
| Barbels | |
| Gill clefts (sharks/rays only) | |
| Gill rakers | |
| on lower limb | |
| on upper limb | |
| total | |
| Vertebrae | |
| preanal | |
| total | 31 - 33 |
| Attributes | |
| Fins number | 1 |
| Finlets No. | Dorsal |
| Ventral | |
| Spines total | 0 - 0 |
| Soft-rays total | 11 - 11 |
| Adipose fin | present |
| Attributes | forked; more or less normal |
| Fins number | |
| Spines total | |
| Soft-rays total | 26 - 30 |
| Pectoral | Attributes |
| Spines | |
| Soft-rays 11 - 13 | |
| Pelvics | Attributes |
| Position abdominal before origin of D1 | |
| Spines | |
| Soft-rays 8 - 8 |