| Main Ref. | Collette, B.B., 1999 |
| Appearance refers to | Male; Female |
| Bones in OsteoBase | Skull, Spine |
| Specialized organs | |
| Different appearance | |
| Different colors | |
| Remarks |
| Striking features | |
| Body shape lateral | fusiform / normal |
| Cross section | compressed |
| Dorsal head profile | |
| Type of eyes | |
| Type of mouth/snout | |
| Position of mouth | terminal |
| Diagnosis |
Jaw teeth prominent, sharp, compressed, in a single series. Two dorsal fins, the first short and low, with 7 or 8 feeble spines connected by a membrane. Back greenish, sides and belly silvery (Ref. 9860). |
| Ease of Identification |
| Lateral Lines | 1 Interrupted: No |
| Scales on lateral line | 84 - 100 |
| 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 | 9 - 10 |
| on upper limb | 4 - 5 |
| total | 13 - 15 |
| Vertebrae | |
| preanal | |
| total |
| Attributes | |
| Fins number | 2 |
| Finlets No. | Dorsal 0 - 0 |
| Ventral 0 - 0 | |
| Spines total | 8 - 9 |
| Soft-rays total | 23 - 28 |
| Adipose fin | absent |
| Attributes | forked; more or less normal |
| Fins number | 1 |
| Spines total | 2 - 3 |
| Soft-rays total | 23 - 27 |
| Pectoral | Attributes more or less normal |
| Spines 0 | |
| Soft-rays 14 - 17 | |
| Pelvics | Attributes more or less normal |
| Position thoracic before origin of D1 | |
| Spines 1 | |
| Soft-rays 5 - 5 |