| Main Ref. | Arunachalam, M., J.A. Johnson and K. Rema Devi, 2002 |
| 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 | sub-terminal/inferior |
| Type of scales | |
| Diagnosis |
Dorsal fin origin behind the origin of the pelvic fin and inserted nearer to the caudal fin base than to the tip of the snout; pectoral fin with 4 simple and 10 branched rays; rostral barbels unequal in size, first pair shorter than second pair; lateral line with 88-95 scales; body dark brown with 8-9 blotches on dorsal surface; ventral surface anterior to anal fin yellow and remainfer brown (Ref. 47923). |
| Ease of Identification | easy to distinguish from other species. |
| Lateral Lines | Interrupted: No |
| Scales on lateral line | 88 - 95 |
| 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 | |
| Vertebrae | |
| preanal | |
| total |
| Attributes | |
| Fins number | 1 |
| Finlets No. | Dorsal 0 - 0 |
| Ventral 0 - 0 | |
| Spines total | 2 - 2 |
| Soft-rays total | 9 - 9 |
| Adipose fin | absent |
| Attributes | more or less truncate |
| Fins number | |
| Spines total | 3 - 3 |
| Soft-rays total | 5 - 5 |
| Pectoral | Attributes |
| Spines 4 | |
| Soft-rays 10 - 10 | |
| Pelvics | Attributes |
| Position before origin of D1 | |
| Spines 2 | |
| Soft-rays 7 - 7 |