| Main Ref. | Stresemann, E., 1974 |
| Appearance refers to | Male; Female |
| Bones in OsteoBase |
| Specialized organs | no special organs |
| Different appearance | males alike females |
| Different colors | different colors during breeding season only |
| Remarks |
| Striking features | none |
| Body shape lateral | fusiform / normal |
| Cross section | oval |
| Dorsal head profile | more or less straight |
| Type of eyes | more or less normal |
| Type of mouth/snout | more or less normal |
| Position of mouth | terminal |
| Diagnosis |
Fusiform body (Ref. 51442). Head little and pointed (Ref. 51442). Mouth large, extending mostly after the eye and has well developed teeth (Ref. 51442). Teeth on shaft of vomer numerous and strongly developed (Ref. 7251). Caudal fin with 18-19 rays (Ref. 2196). Caudal peduncle thick and rounded (Ref. 51442). Little scales (Ref. 51442). Body is grey-blue colored with numerous spots, also below the lateral line (Ref. 51442). Blackish colored on upper part of body, usually orange on sides, surrounded by pale halos. Adipose fin with red margin. |
| Ease of Identification |
| Lateral Lines | Interrupted: No |
| Scales on lateral line | 105 - 130 |
| Pored lateral line scales | |
| Scales in lateral series | |
| Scale rows above lateral line | 24 - 30 |
| Scale rows below lateral line | |
| Scales around caudal peduncle | |
| Barbels | 0 |
| Gill clefts (sharks/rays only) | absent |
| Gill rakers | |
| on lower limb | |
| on upper limb | |
| total | 14 - 20 |
| Vertebrae | |
| preanal | |
| total | 57 - 59 |
| Attributes | no striking attributes |
| Fins number | 1 |
| Finlets No. | Dorsal 0 - 0 |
| Ventral 0 - 0 | |
| Spines total | 3 - 4 |
| Soft-rays total | 10 - 15 |
| Adipose fin | present |
| Attributes | more or less truncate; more or less normal |
| Fins number | 1 |
| Spines total | 3 - 4 |
| Soft-rays total | 9 - 14 |
| Pectoral | Attributes more or less normal |
| Spines 1 | |
| Soft-rays 11 - 16 | |
| Pelvics | Attributes more or less normal |
| Position abdominal behind origin of D1 | |
| Spines 2 | |
| Soft-rays 7 - 10 |