| Main Ref. | Ng, H.H. and H.H. Tan, 2000 |
| Appearance refers to | |
| Bones in OsteoBase |
| Specialized organs | no special organs |
| Different appearance | |
| Different colors | |
| Remarks |
| Striking features | none |
| Body shape lateral | elongated |
| Cross section | |
| 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 | scales embedded or partly/completely absent |
| Diagnosis |
anal and caudal fins confluent only at the base, 54-59 anal fin rays, 44-45 caudal vertebrae, length of anal fin base 54.6-61.2% of SL, body depth at anus 10.1-11.4% of SL, head length 13.1-17.2% of SL, snout length 28.9-32.0% of head length, and interorbital distance 45.3-50.5% of head length. |
| Ease of Identification | likely to be confused with closely related species. |
| 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 | 9 - 10 |
| Vertebrae | |
| preanal | |
| total | 62 - 64 |
| Attributes | |
| Fins number | 1 |
| Finlets No. | Dorsal |
| Ventral | |
| Spines total | |
| Soft-rays total | 25 - 29 |
| Adipose fin | present |
| Attributes | more or less normal |
| Fins number | 1 |
| Spines total | |
| Soft-rays total | 54 - 59 |
| Pectoral | Attributes |
| Spines 1 | |
| Soft-rays 7 - 8 | |
| Pelvics | Attributes more or less normal |
| Position abdominal behind origin of D1 | |
| Spines | |
| Soft-rays 5 - 5 |