| Main Ref. | Lea, R.N., 1997 |
| Appearance refers to | |
| Bones in OsteoBase |
| Specialized organs | |
| Different appearance | |
| Different colors | |
| Remarks |
| Striking features | striking shape of body |
| Body shape lateral (shape guide) | elongated |
| Cross section | oval |
| 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 | sub-terminal/inferior |
| Type of scales | |
| Diagnosis |
Dark brown to black blotching and spotting on head, dorsal, and lateral portion of the body. Scales with anguilliform arrangement on body; ethmoid spine blunt. Pelvic filaments long. Gill rakers numerous. Prejuvenile stage present. |
| Ease of Identification | likely to be confused with closely related species. |
| Lateral Lines | 1 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 | 3 - 4 |
| on upper limb | 9 - 12 |
| total | 12 - 15 |
| Vertebrae | |
| preanal | |
| total | 70 - 76 |
| Attributes | continuous with caudal fin |
| Fins number | 1 |
| Finlets No. | Dorsal 0 - 0 |
| Ventral 0 - 0 | |
| Spines total | 0 - 0 |
| Soft-rays total | 135 - 163 |
| Adipose fin | absent |
| Attributes | pointed; confluent |
| Fins number | 1 |
| Spines total | 0 - 0 |
| Soft-rays total | 112 - 139 |
| Pectoral | Attributes more or less normal |
| Spines 0 | |
| Soft-rays 25 - 28 | |
| Pelvics | Attributes reduced to filaments |
| Position jugular before origin of D1 | |
| Spines 0 | |
| Soft-rays 2 - 2 |