| Main Ref. | McKay, R.J., 1992 |
| Appearance refers to | |
| Bones in OsteoBase |
| Specialized organs | |
| Different appearance | |
| Different colors | |
| Remarks |
| Striking features | none |
| Body shape lateral | elongated |
| Cross section | circular |
| 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 | terminal |
| Type of scales | ctenoid scales |
| Diagnosis |
Swim bladder with two posterior extensions. Body is pale brown to dull brown above, lighter below; a faint mid-lateral stripe usually present; dorsal fins dusky terminally with five or six rows of dusky spots on second dorsal fin membranes, other fins hyaline. |
| Ease of Identification |
| Lateral Lines | 1 Interrupted: No |
| Scales on lateral line | 79 - 84 |
| 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 | 39 - 40 |
| Attributes | no striking attributes |
| Fins number | 2 |
| Finlets No. | Dorsal 0 - 0 |
| Ventral 0 - 0 | |
| Spines total | 13 - 14 |
| Soft-rays total | 20 - 22 |
| Adipose fin | absent |
| Attributes | more or less truncate; more or less normal |
| Fins number | 1 |
| Spines total | 2 - 2 |
| Soft-rays total | 22 - 24 |
| Pectoral | Attributes more or less normal |
| Spines | |
| Soft-rays | |
| Pelvics | Attributes rays very elongated |
| Position thoracic before origin of D1 | |
| Spines 1 | |
| Soft-rays 5 - 5 |