| Main Ref. | Møller, P.R., 1999 |
| Appearance refers to | |
| Bones in OsteoBase |
| Specialized organs | |
| Different appearance | |
| Different colors | |
| Remarks |
| Striking features | |
| Body shape lateral | eel-like |
| Cross section | |
| Dorsal head profile | more or less straight |
| Type of eyes | |
| Type of mouth/snout | more or less normal |
| Position of mouth | sub-terminal/inferior |
| Type of scales | |
| Diagnosis |
Predorsal length 17.1-23.1% SL. Suborbital head pores, 7 (rarely 6). Abdomen scaled. |
| 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 | 24 - 27 |
| total | 127 - 137 |
| Attributes | |
| Fins number | |
| Finlets No. | Dorsal |
| Ventral | |
| Spines total | |
| Soft-rays total | 112 - 124 |
| Adipose fin |
| Attributes | pointed |
| Fins number | |
| Spines total | |
| Soft-rays total | 106 - 116 |
| Pectoral | Attributes |
| Spines | |
| Soft-rays 14 - 17 | |
| Pelvics | Attributes |
| Position | |
| Spines | |
| Soft-rays |