| Main Ref. | Herre, A.W.C.T., 1924 |
| Appearance refers to | |
| Bones in OsteoBase |
| Specialized organs | |
| Different appearance | |
| Different colors | |
| Remarks |
| Striking features | |
| Body shape lateral | elongated |
| Cross section | circular |
| 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 |
Preserved color dark greenish or bluish dorsally, yellowish or reddish brown ventrally; an inconspicuous spot behind corner of mouth; yellow spots on underside of depressed head occasionally. Pectorals about as long as head behind eyes. Large scales on top of head. Dorsal fin extends beyond tip of anal. Young specimens have a red lateral band from snout to caudal. |
| Ease of Identification |
| Lateral Lines | 1 Interrupted: No |
| Scales on lateral line | 50 - 52 |
| Pored lateral line scales | |
| Scales in lateral series | |
| Scale rows above lateral line | 4 - 4.5 |
| Scale rows below lateral line | 8 - 9 |
| Scales around caudal peduncle | |
| Barbels | 0 |
| Gill clefts (sharks/rays only) | |
| Gill rakers | |
| on lower limb | |
| on upper limb | |
| total | |
| Vertebrae | |
| preanal | |
| total |
| Attributes | extending over most of the back length |
| Fins number | 1 |
| Finlets No. | Dorsal |
| Ventral | |
| Spines total | 0 - 0 |
| Soft-rays total | 37 - 41 |
| Adipose fin | absent |
| Attributes |
| Fins number | 1 |
| Spines total | 0 - 0 |
| Soft-rays total | 21 - 25 |
| Pectoral | Attributes more or less normal |
| Spines 0 | |
| Soft-rays 14 - 15 | |
| Pelvics | Attributes more or less normal |
| Position thoracic beneath origin of D1 | |
| Spines 0 | |
| Soft-rays 6 - 6 |