| Main Ref. | Ng, H.H. and M. Kottelat, 2000 |
| Appearance refers to | |
| Bones in OsteoBase |
| Specialized organs | |
| Different appearance | |
| Different colors | |
| Remarks |
| Striking features | |
| Body shape lateral | elongated |
| Cross section | circular |
| Dorsal head profile | more or less straight |
| Type of eyes | other (see remarks) |
| Type of mouth/snout | other (see remarks) |
| Position of mouth | terminal |
| Type of scales | |
| Diagnosis |
Distinguished from other members of the genus by having a truncate caudal fin and a very low adipose fin with an indistinct posterior margin (length of adipose fin base 29.5-38.5% SL; dorsal to adipose distance 25.0-32.8% SL) (Ref. 37785). |
| 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 | 6 - 6 |
| Vertebrae | |
| preanal | |
| total | 45 - 46 |
| Attributes | |
| Fins number | 1 |
| Finlets No. | Dorsal |
| Ventral | |
| Spines total | 1 - 1 |
| Soft-rays total | 4 - 4 |
| Adipose fin | present |
| Attributes | more or less truncate; more or less normal |
| Fins number | |
| Spines total | |
| Soft-rays total | 11 - 12 |
| Pectoral | Attributes more or less normal |
| Spines 1 | |
| Soft-rays 5 - 6 | |
| Pelvics | Attributes more or less normal |
| Position abdominal behind origin of D1 | |
| Spines | |
| Soft-rays 6 - 6 |