| 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 |
Distinguished by the combination of the following characters: P7/10; 48-50 + 1-2 scales along lateral line; all scales with a single keel; body depth 13.8-15.1% SL; body width 13.2-13.8% SL; eye diameter 15-16% HL; interorbital width 42-46% HL; pectoral fins not reaching pelvic fins. |
| Ease of Identification |
| Lateral Lines | Interrupted: No |
| Scales on lateral line | 48 - 50 |
| Pored lateral line scales | |
| Scales in lateral series | |
| Scale rows above lateral line | 6 - 7 |
| Scale rows below lateral line | 7 - 9 |
| Scales around caudal peduncle | 20 - 20 |
| 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 |
| Ventral | |
| Spines total | |
| Soft-rays total | 11 - 11 |
| Adipose fin | absent |
| Attributes | forked; more or less normal |
| Fins number | |
| Spines total | |
| Soft-rays total | 7 - 7 |
| Pectoral | Attributes |
| Spines | |
| Soft-rays 17 - 17 | |
| Pelvics | Attributes |
| Position abdominal beneath origin of D1 | |
| Spines | |
| Soft-rays 10 - 10 |