| Main Ref. | Schuster, W.H., 1960 |
| Appearance refers to | Male; Female |
| Bones in OsteoBase | Skull, Spine |
| Specialized organs | no special organs |
| Different appearance | males alike females |
| Different colors | males alike females |
| Remarks |
| Striking features | none |
| Body shape lateral | elongated |
| 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 |
| Diagnosis |
This species is characterized by the following: body elongate and somewhat compressed; mouth small and toothless; branchiostegal rays 4; one dorsal fin; pectoral fins falcate; body olive green; flanks silvery; fins dark bordered (Ref. 55763). Superficially resembles bonefishes but by evolution more advanced by having 4 branchiostegal rays (Ref. 1602); jaws toothless (Ref. 12693); with 31 caudal fin rays (Ref. 50686). |
| Ease of Identification |
| Lateral Lines | 1 Interrupted: No |
| Scales on lateral line | 75 - 85 |
| Pored lateral line scales | 75 - 91 |
| Scales in lateral series | |
| Scale rows above lateral line | |
| Scale rows below lateral line | |
| Scales around caudal peduncle | 5 - 7 |
| Barbels | 0 |
| Gill clefts (sharks/rays only) | absent |
| Gill rakers | |
| on lower limb | 107 - 165 |
| on upper limb | 147 - 160 |
| total | 254 - 325 |
| Vertebrae | |
| preanal | |
| total | 46 - 46 |
| Attributes | no striking attributes |
| Fins number | 1 |
| Finlets No. | Dorsal 0 - 0 |
| Ventral 0 - 0 | |
| Spines total | 2 - 2 |
| Soft-rays total | 13 - 17 |
| Adipose fin | absent |
| Attributes | forked; more or less normal |
| Fins number | 1 |
| Spines total | 2 - 2 |
| Soft-rays total | 8 - 10 |
| Pectoral | Attributes more or less normal |
| Spines 1 | |
| Soft-rays 15 - 17 | |
| Pelvics | Attributes more or less normal |
| Position thoracic before origin of D1 | |
| Spines 1 | |
| Soft-rays 10 - 12 |