| Main Ref. | Kottelat, M., 1998 |
| Appearance refers to | |
| Bones in OsteoBase |
| Specialized organs | |
| Different appearance | |
| Different colors | |
| Remarks |
| Striking features | |
| Body shape lateral | |
| Cross section | |
| Dorsal head profile | |
| Type of eyes | |
| Type of mouth/snout | |
| Position of mouth | |
| Type of scales | |
| Diagnosis |
Mouth width 2.2-2.3 times in head width; no barbels; caudal peduncle about 2.4-2.8 times longer than deep (Ref. 27732); last simple dorsal ray slender and smooth in individuals less than about 9 cm SL, smooth to finely serrated posteriorly in larger individuals (Ref. 43281). |
| Ease of Identification |
| Lateral Lines | Interrupted: No |
| Scales on lateral line | 43 - 45 |
| 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 0 - 0 |
| Ventral 0 - 0 | |
| Spines total | 4 - 4 |
| Soft-rays total | 8 - 8 |
| Adipose fin | absent |
| Attributes | forked; more or less normal |
| Fins number | 1 |
| Spines total | 3 - 3 |
| Soft-rays total | 5 - 5 |
| Pectoral | Attributes more or less normal |
| Spines 1 | |
| Soft-rays 15 - 16 | |
| Pelvics | Attributes more or less normal |
| Position before origin of D1 | |
| Spines 1 | |
| Soft-rays 9 - 9 |