| Main Ref. | Robins, C.R., R.H. Robins and M.E. Brown, 2012 |
| 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 |
Rostral spine long and curved, reaching tip of snout, without vertical basal component; peritoneum pale; no median basibranchial tooth patch; head extensively covered with imbricate rows of cycloid scales except for snout and throat; body tapering to point, dagger-shaped (Ref. 34024). |
| 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 - 11 |
| Vertebrae | |
| preanal | 14 - 16 |
| total | 71 - 75 |
| Attributes | |
| Fins number | |
| Finlets No. | Dorsal |
| Ventral | |
| Spines total | |
| Soft-rays total | 129 - 137 |
| Adipose fin |
| Attributes |
| Fins number | |
| Spines total | |
| Soft-rays total | 108 - 115 |
| Pectoral | Attributes |
| Spines | |
| Soft-rays 21 - 24 | |
| Pelvics | Attributes |
| Position | |
| Spines | |
| Soft-rays |