| Main Ref. | Nielsen, J.G., 1997 |
| Appearance refers to | |
| Bones in OsteoBase |
| Specialized organs | |
| Different appearance | |
| Different colors | |
| Remarks |
| Striking features | |
| Body shape lateral | elongated |
| Cross section | |
| Dorsal head profile | |
| Type of eyes | |
| Type of mouth/snout | |
| Position of mouth | |
| Type of scales | |
| Diagnosis |
The ventral fins reach beyond the origin of anal fin. The hind margin of preoperculum has two spines. There are eleven (11) long rakers on the anterior gill arch. The anterior ocellus is at the origin of the dorsal fin, while the second and larger ocellus is posterior to the anus. |
| 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 | 11 - 11 |
| Vertebrae | |
| preanal | |
| total | 53 - 54 |
| Attributes | |
| Fins number | 1 |
| Finlets No. | Dorsal 0 - 0 |
| Ventral 0 - 0 | |
| Spines total | |
| Soft-rays total | 91 - 92 |
| Adipose fin | absent |
| Attributes | pointed; more or less normal |
| Fins number | |
| Spines total | |
| Soft-rays total | 76 - 76 |
| Pectoral | Attributes more or less normal |
| Spines | |
| Soft-rays 25 - 26 | |
| Pelvics | Attributes reduced to filaments |
| Position jugular before origin of D1 | |
| Spines | |
| Soft-rays |