| Main Ref. | Whitehead, P.J.P., 1985 |
| Appearance refers to | |
| Bones in OsteoBase |
| Specialized organs | no special organs |
| Different appearance | males alike females |
| Different colors | males alike females |
| Remarks |
| Striking features | none |
| Body shape lateral | fusiform / normal |
| Cross section | compressed |
| 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 |
| Diagnosis |
Scutes strongly keeled, 1 or 2 before base of first pectoral fin ray, 13 or 14 + 6 or 7; 13-16 prepelvic scutes, 3-7 postpelvic scutes. Snout fairly pointed; lower jaw not projecting, included in upper when mouth closed, with small teeth at symphysis; maxilla blade slender (more than 3 times as long as deep), upper edge with a ridge flared outward; supra-maxilla small, shaft as long as or longer than blade, the latter spatulate. |
| Ease of Identification |
| Lateral Lines | Interrupted: No |
| Scales on lateral line | 36 - 40 |
| Pored lateral line scales | |
| Scales in lateral series | |
| Scale rows above lateral line | 0 - 0 |
| Scale rows below lateral line | 0 - 0 |
| Scales around caudal peduncle | |
| Barbels | 0 |
| Gill clefts (sharks/rays only) | |
| Gill rakers | |
| on lower limb | 14 - 16 |
| on upper limb | |
| total | 20 - 36 |
| Vertebrae | |
| preanal | 17 - 19 |
| total | 37 - 41 |
| Attributes | no striking attributes |
| Fins number | 1 |
| Finlets No. | Dorsal 0 - 0 |
| Ventral 0 - 0 | |
| Spines total | 0 - 0 |
| Soft-rays total | 12 - 18 |
| Adipose fin | absent |
| Attributes | forked; more or less normal |
| Fins number | 1 |
| Spines total | 0 - 0 |
| Soft-rays total | 23 - 27 |
| Pectoral | Attributes more or less normal |
| Spines 0 | |
| Soft-rays 12 - 15 | |
| Pelvics | Attributes more or less normal |
| Position abdominal before origin of D1 | |
| Spines | |
| Soft-rays 7 |