| Main Ref. | Poss, S.G., 1982 |
| Appearance refers to | |
| Bones in OsteoBase |
| Specialized organs | |
| Different appearance | |
| Different colors | |
| Remarks |
| Striking features | |
| Body shape lateral | elongated |
| Cross section | oval |
| Dorsal head profile | clearly convex |
| Type of eyes | more or less normal |
| Type of mouth/snout | clearly protrusible |
| Position of mouth | superior |
| Type of scales | |
| Diagnosis |
Head bones, especially infraorbital series, strongly sculptured (Ref. 39602). |
| Ease of Identification |
| Lateral Lines | Interrupted: No |
| Scales on lateral line | |
| Pored lateral line scales | 11 - 12 |
| Scales in lateral series | |
| Scale rows above lateral line | |
| Scale rows below lateral line | |
| Scales around caudal peduncle | |
| Barbels | 0 |
| Gill clefts (sharks/rays only) | |
| Gill rakers | |
| on lower limb | 5 - 6 |
| on upper limb | 1 - 1 |
| total | 6 - 7 |
| Vertebrae | |
| preanal | |
| total |
| Attributes | extending over most of the back length |
| Fins number | 1 |
| Finlets No. | Dorsal 0 - 0 |
| Ventral 0 - 0 | |
| Spines total | 12 - 11 |
| Soft-rays total | 9 - 9 |
| Adipose fin | absent |
| Attributes | more or less truncate; more or less normal |
| Fins number | 1 |
| Spines total | 1 - 1 |
| Soft-rays total | 9 - 9 |
| Pectoral | Attributes more or less normal |
| Spines 0 | |
| Soft-rays 14 - 14 | |
| Pelvics | Attributes more or less normal |
| Position jugular behind origin of D1 | |
| Spines 1 | |
| Soft-rays 2 - 2 |