| Main Ref. | Karmovskaya, E.S. and D.G. Smith, 2008 |
| 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 | |
| Position of mouth | |
| Type of scales | |
| Diagnosis |
Distinguished by the following characters: tail slender and flexible; snout projecting beyond lower jaw, tip fleshy, extending beyond intermaxillary teeth; flange on upper lip rudimentary or absent; adnasal pore absent, some head pores enlarged; teeth moderate to slightly enlarged, intermaxillary patch exposed when mouth closed, vomerine teeth in a short rounded patch; preorbital bone with three ventral projections; stomach and intestine black (Ref. 79665). |
| 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 | 28 - 30 |
| total | 117 - 119 |
| Attributes | |
| Fins number | |
| Finlets No. | Dorsal |
| Ventral | |
| Spines total | |
| Soft-rays total | 203 - 221 |
| Adipose fin |
| Attributes |
| Fins number | |
| Spines total | |
| Soft-rays total | 164 - 177 |
| Pectoral | Attributes |
| Spines | |
| Soft-rays 11 - 13 | |
| Pelvics | Attributes |
| Position | |
| Spines | |
| Soft-rays |