| Main Ref. | Myers, R.F., 1991 |
| Appearance refers to | Male; Female |
| Bones in OsteoBase |
| Specialized organs | no special organs |
| Different appearance | males alike females |
| Different colors | males alike females |
| Remarks |
| Striking features | striking type of mouth |
| Body shape lateral | elongated |
| Cross section | flattened |
| Dorsal head profile | more or less straight |
| Type of eyes | more or less normal |
| Type of mouth/snout | tube-like |
| Position of mouth | terminal |
| Type of scales | |
| Diagnosis |
Vertically flattened rather than laterally compressed body. Long whiplike tail filament. Color is green dorsally, grading to silvery white ventrally, with two blue stripes or rows of blue spots on the back. Dorsal and anal fin orange becoming transparent at base. Caudal filament white. Broadly banded at night (Ref. 48635). First four vertebrae fused (Ref. 9826). Branchiostegal rays: 5 (Ref. 36710). |
| Ease of Identification |
| Lateral Lines | 1 Interrupted: No |
| Scales on lateral line | 0 - 0 |
| Pored lateral line scales | 0 - 0 |
| Scales in lateral series | 0 - 0 |
| Scale rows above lateral line | 0 - 0 |
| Scale rows below lateral line | 0 - 0 |
| Scales around caudal peduncle | 0 - 0 |
| Barbels | 0 |
| Gill clefts (sharks/rays only) | |
| Gill rakers | |
| on lower limb | |
| on upper limb | |
| total | |
| Vertebrae | |
| preanal | 50 - 51 |
| total | 83 - 86 |
| Attributes | no striking attributes |
| Fins number | 1 |
| Finlets No. | Dorsal 0 - 0 |
| Ventral 0 - 0 | |
| Spines total | 0 - 0 |
| Soft-rays total | 14 - 17 |
| Adipose fin | absent |
| Attributes | forked; with medial filament |
| Fins number | 1 |
| Spines total | 0 - 0 |
| Soft-rays total | 14 - 16 |
| Pectoral | Attributes more or less normal |
| Spines 0 | |
| Soft-rays 13 - 15 | |
| Pelvics | Attributes more or less normal |
| Position abdominal before origin of D1 | |
| Spines 0 | |
| Soft-rays 6 - 6 |