| Main Ref. | Taki, Y., 1974 |
| Appearance refers to | |
| Bones in OsteoBase |
| Specialized organs | |
| Different appearance | |
| Different colors | |
| Remarks |
| Striking features | none |
| Body shape lateral | eel-like |
| Cross section | compressed |
| Dorsal head profile | more or less straight |
| Type of eyes | more or less normal |
| Type of mouth/snout | more or less normal |
| Position of mouth | |
| Type of scales | |
| Diagnosis |
Body with series of obliquely oriented bars (Ref. 39392). Dorsal and anal fins with a row of isolated spines followed by a long continuous soft portion, both fins extending to but not confluent with caudal fin. Pelvic fins absent. Caudal fin rounded (Ref. 4792). |
| 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 | 0 |
| Gill clefts (sharks/rays only) | |
| Gill rakers | |
| on lower limb | |
| on upper limb | |
| total | |
| Vertebrae | |
| preanal | |
| total |
| Attributes | extending over most of the back length |
| Fins number | 1 |
| Finlets No. | Dorsal 0 - 0 |
| Ventral 0 - 0 | |
| Spines total | 14 - 20 |
| Soft-rays total | 52 - 56 |
| Adipose fin | absent |
| Attributes | other (see diagnosis) |
| Fins number | 1 |
| Spines total | 3 - 3 |
| Soft-rays total | 50 - 54 |
| Pectoral | Attributes |
| Spines | |
| Soft-rays | |
| Pelvics | Attributes other (see diagnosis) |
| Position absent | |
| Spines 0 | |
| Soft-rays 0 - 0 |