| Main Ref. | Møller, P.R. and M.E. Anderson, 2000 |
| 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 | |
| Type of eyes | |
| Type of mouth/snout | more or less normal |
| Position of mouth | sub-terminal/inferior |
| Type of scales | cycloid scales |
| Diagnosis |
Dorsal fin origin associated with vertebrae 4; branchiostegal rays 6; suborbital pores 5. Mediolateral lateral line, originating just posterior to posteriormost postorbital pore. Pseudobranch present. |
| 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 | 9 - 9 |
| Vertebrae | |
| preanal | |
| total | 93 - 93 |
| Attributes | |
| Fins number | |
| Finlets No. | Dorsal |
| Ventral | |
| Spines total | |
| Soft-rays total | 88 - 88 |
| Adipose fin |
| Attributes |
| Fins number | |
| Spines total | |
| Soft-rays total | 73 - 73 |
| Pectoral | Attributes |
| Spines | |
| Soft-rays 15 - 15 | |
| Pelvics | Attributes |
| Position | |
| Spines | |
| Soft-rays 2 - 2 |