| Main Ref. | Kottelat, M. and X.L. Chu, 1988 |
| 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 | |
| Type of scales | |
| Diagnosis |
Slender and elongate body (body depth 14-16% SL) and slender caudal peduncle (1.98-2.35 times longer than deep); body nearly naked, scales present only on dorsal and ventral margin of caudal peduncle; head pores present (Ref. 12040). |
| Ease of Identification |
| Lateral Lines | Interrupted: No |
| Scales on lateral line | |
| Pored lateral line scales | 16 - 25 |
| 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 | 10 - 10 |
| on upper limb | 2 - 2 |
| total | 12 - 12 |
| Vertebrae | |
| preanal | |
| total |
| Attributes | |
| Fins number | 1 |
| Finlets No. | Dorsal |
| Ventral | |
| Spines total | |
| Soft-rays total | 12 - 12 |
| Adipose fin |
| Attributes | more or less truncate |
| Fins number | 1 |
| Spines total | |
| Soft-rays total | 8 - 8 |
| Pectoral | Attributes |
| Spines | |
| Soft-rays 10 - 12 | |
| Pelvics | Attributes |
| Position abdominal | |
| Spines | |
| Soft-rays 7 - 8 |