| Main Ref. | Aonuma, Y. and I.-S. Chen, 1996 |
| Appearance refers to | |
| Bones in OsteoBase |
| Specialized organs | |
| Different appearance | |
| Different colors | |
| Remarks |
| Striking features | |
| Body shape lateral | fusiform / normal |
| Cross section | circular |
| Dorsal head profile | more or less straight |
| Type of eyes | other (see Diagnosis) |
| Type of mouth/snout | other (see Diagnosis) |
| Position of mouth | |
| Diagnosis |
Head large in male and depressed. Lips fleshy, upper jaw prominent. |
| 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 | |
| Gill clefts (sharks/rays only) | |
| Gill rakers | |
| on lower limb | |
| on upper limb | |
| total | |
| Vertebrae | |
| preanal | |
| total |
| Attributes | |
| Fins number | 2 |
| Finlets No. | Dorsal 0 - 0 |
| Ventral 0 - 0 | |
| Spines total | 7 - 7 |
| Soft-rays total | 7 - 9 |
| Adipose fin | absent |
| Attributes | more or less truncate; more or less normal |
| Fins number | 1 |
| Spines total | 1 - 1 |
| Soft-rays total | 7 - 8 |
| Pectoral | Attributes more or less normal |
| Spines 0 | |
| Soft-rays 18 - 19 | |
| Pelvics | Attributes joint, cup-like |
| Position thoracic before origin of D1 | |
| Spines 1 | |
| Soft-rays 5 - 5 |