| Main Ref. | Collette, B.B. and C.E. Nauen, 1983 |
| 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 | oval |
| 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 |
| Type of scales | |
| Diagnosis |
Interpelvic process small and bifid. Lateral line gradually curving down toward caudal peduncle. Vertebrae 20-21 precaudal plus 34-36 caudal, total 54-56. Intestine with 2 folds and 3 limbs. Swim bladder absent. Body covered with small scales. First dorsal fin black anteriorly and along distal edge posteriorly. Has the most number of vertebrae and anal fin rays in the genus. Sides silvery without spots, blotches or bars. |
| Ease of Identification |
| Lateral Lines | 1 Interrupted: No |
| Scales on lateral line | |
| Pored lateral line scales | |
| 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 | 1 - 4 |
| on upper limb | 0 - 0 |
| total | 1 - 4 |
| Vertebrae | |
| preanal | |
| total | 54 - 56 |
| Attributes | no striking attributes |
| Fins number | 2 |
| Finlets No. | Dorsal 7 - 9 |
| Ventral 6 - 9 | |
| Spines total | 16 - 19 |
| Soft-rays total | 21 - 25 |
| Adipose fin | absent |
| Attributes | forked; more or less normal |
| Fins number | 1 |
| Spines total | 0 - 0 |
| Soft-rays total | 25 - 29 |
| Pectoral | Attributes more or less normal |
| Spines 0 | |
| Soft-rays 20 - 23 | |
| Pelvics | Attributes more or less normal |
| Position thoracic before origin of D1 | |
| Spines 1 | |
| Soft-rays 5 - 5 |