| Main Ref. | Myers, R.F., 1989 |
| Appearance refers to | |
| Bones in OsteoBase |
| Specialized organs | |
| Different appearance | |
| Different colors | |
| Remarks |
| Striking features | |
| Body shape lateral | elongated |
| Cross section | oval |
| Dorsal head profile | |
| Type of eyes | |
| Type of mouth/snout | |
| Position of mouth | |
| Type of scales | |
| Diagnosis |
Greatly prolonged, beak-like lower jaw; upper jaw short, triangular and without scales; preorbital ridge absent; total number of gill rakers on first gill arch 25-32; dorsal fin without well-developed anterior lobe; pectoral fins short, not reaching past nasal pit when folded forward; no vertical bars on sides (Ref. 9843). Description: Characterized by dark blue color dorsally and silvery white ventrally with red-tipped darkish beak; upper caudal fin lobe, yellow; depth of body about 5.7 in SL; width of body contained 1.8-2.0 in its depth (Ref. 90102). |
| Ease of Identification |
| Lateral Lines | 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 | |
| Gill clefts (sharks/rays only) | |
| Gill rakers | |
| on lower limb | 19 - 24 |
| on upper limb | 6 - 8 |
| total | 25 - 32 |
| Vertebrae | |
| preanal | |
| total |
| Attributes | |
| Fins number | 1 |
| Finlets No. | Dorsal |
| Ventral | |
| Spines total | 0 - 0 |
| Soft-rays total | 12 - 15 |
| Adipose fin |
| Attributes |
| Fins number | 1 |
| Spines total | 0 - 0 |
| Soft-rays total | 10 - 13 |
| Pectoral | Attributes |
| Spines 0 | |
| Soft-rays 11 - 13 | |
| Pelvics | Attributes |
| Position | |
| Spines | |
| Soft-rays |