| Main Ref. | Hutchins, J.B., 1986 |
| Appearance refers to | |
| Bones in OsteoBase |
| Specialized organs | |
| Different appearance | |
| Different colors | |
| Remarks |
| Striking features | |
| Body shape lateral | short and / or deep |
| Cross section | compressed |
| Dorsal head profile | clearly concave |
| Type of eyes | more or less normal |
| Type of mouth/snout | more or less normal |
| Position of mouth | terminal |
| Diagnosis |
Head and body grayish brown when fresh; iris brown; caudal fin orange with black posterior margin; spinous dorsal fin dark brown. Usually a broad and blackish bar passing from nape, through eye, to pectoral base. Large pelvic rudiment not broadly attached to posterior margin of ventral flap. 1 - 5 spinules on midbody scales, middle spinule longest; scale spinules on posterior half of body becoming progressively more elongate, extremities of those on caudal peduncle of male curving forward; male with scale rugosities developing at about 50 mm SL |
| Ease of Identification |
| Lateral Lines | Interrupted: No |
| Scales on lateral line | |
| Pored lateral line scales | |
| Scales in lateral series | |
| Scale rows above lateral line | |
| Scale rows below lateral line | |
| Scales around caudal peduncle | |
| Barbels | 0 |
| Gill clefts (sharks/rays only) | |
| Gill rakers | |
| on lower limb | |
| on upper limb | |
| total | |
| Vertebrae | |
| preanal | 7 - 7 |
| total | 19 - 19 |
| Attributes | other |
| Fins number | 2 |
| Finlets No. | Dorsal |
| Ventral | |
| Spines total | 1 - 1 |
| Soft-rays total | 30 - 32 |
| Adipose fin | absent |
| Attributes | more or less truncate; more or less normal |
| Fins number | 1 |
| Spines total | 0 - 0 |
| Soft-rays total | 27 - 29 |
| Pectoral | Attributes more or less normal |
| Spines 0 | |
| Soft-rays 12 - 12 | |
| Pelvics | Attributes other (see diagnosis) |
| Position abdominal behind origin of D1 | |
| Spines | |
| Soft-rays |