| Main Ref. | Géry, J. and U. Römer, 1997 |
| 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 |
Jaws relatively large, narrow, set with a single row of conical teeth; premaxilla with a double curve, forming an "S". Lateral line almost non-existent; predorsal line broadly naked; postorbitals lacking. |
| Ease of Identification |
| Lateral Lines | Interrupted: No |
| Scales on lateral line | |
| Pored lateral line scales | 2 - 2 |
| 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 - 11 |
| on upper limb | 7 - 9 |
| total | 17 - 20 |
| Vertebrae | |
| preanal | |
| total |
| Attributes | |
| Fins number | 1 |
| Finlets No. | Dorsal |
| Ventral | |
| Spines total | |
| Soft-rays total | 10 - 11 |
| Adipose fin | present |
| Attributes | forked; more or less normal |
| Fins number | |
| Spines total | |
| Soft-rays total | 19 - 21 |
| Pectoral | Attributes more or less normal |
| Spines | |
| Soft-rays 8 - 7 | |
| Pelvics | Attributes more or less normal |
| Position abdominal before origin of D1 | |
| Spines | |
| Soft-rays |