| Main Ref. | Knapp, L.W., 1999 |
| Appearance refers to | Male; Female |
| 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 |
Lateral line scales frequently 53, each scale with a backward directed spine that does not extend beyond rear margin of scale. Interorbital width less than 9% of head length. Caudal fin frequently with 2 dark bands posteriorly. Dorsal fin rays IX, I,VIII, or I,VII,I, usually I,VIII. |
| Ease of Identification |
| Lateral Lines | 1 Interrupted: No |
| Scales on lateral line | 51 - 55 |
| 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 | 5 - 7 |
| Vertebrae | |
| preanal | |
| total |
| Attributes | |
| Fins number | 2 |
| Finlets No. | Dorsal |
| Ventral | |
| Spines total | 9 - 9 |
| Soft-rays total | 12 - 12 |
| Adipose fin |
| Attributes |
| Fins number | 1 |
| Spines total | 0 - 0 |
| Soft-rays total | 12 - 12 |
| Pectoral | Attributes |
| Spines 0 | |
| Soft-rays 20 - 22 | |
| Pelvics | Attributes |
| Position | |
| Spines | |
| Soft-rays |