| Main Ref. | Zheng, C.-Y., 1990 |
| Appearance refers to | |
| Bones in OsteoBase |
| Specialized organs | |
| Different appearance | |
| Different colors | |
| Remarks |
| Striking features | |
| Body shape lateral | fusiform / normal |
| Cross section | oval |
| 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 | |
| Diagnosis |
No scale, straight and complete lateral line. Short dorsal fin, the highest ray almost equals the length of the head. Long maxillary barbel reaches to the middle of the pectoral fin. Swimming bladder is heart-shaped, divided into three chambers. Olive colored body, gradually become white starting from the stomach. All fins white gray (Ref. 40536). |
| 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 | |
| Vertebrae | |
| preanal | |
| total |
| Attributes | |
| Fins number | 1 |
| Finlets No. | Dorsal |
| Ventral | |
| Spines total | 2 - 2 |
| Soft-rays total | 6 - 6 |
| Adipose fin |
| Attributes | forked; more or less normal |
| Fins number | |
| Spines total | |
| Soft-rays total | 28 - 29 |
| Pectoral | Attributes more or less normal |
| Spines 1 | |
| Soft-rays 10 - 10 | |
| Pelvics | Attributes more or less normal |
| Position abdominal behind origin of D1 | |
| Spines 1 | |
| Soft-rays 11 - 12 |