| Main Ref. | Collette, B.B., 1999 |
| Appearance refers to | |
| Bones in OsteoBase |
| Specialized organs | |
| Different appearance | |
| Different colors | |
| Remarks |
| Striking features | striking type of mouth |
| Body shape lateral (shape guide) | elongated |
| Cross section | oval |
| Dorsal head profile | more or less straight |
| Type of eyes | more or less normal |
| Type of mouth/snout | lower jaw greatly elongated |
| Position of mouth | superior |
| Type of scales | |
| Diagnosis |
Prolonged, beak-like lower jaw, contained in 4.2-5.9 times in SL and 0.95-1.4 times in head length; upper jaw short, triangular, and scaly, its width 0.6-0.9 times in its length; length of preorbital bone contained in 1.7-2.2 times in diameter of orbit and 1.0-1.4 times in length of upper jaw. Total number of gill rakers on first arch 33-47; dorsal and anal fin rays 14-16. Caudal fin forked, with lower lobe longer than upper (Ref. 9843). Description: Characterized by greenish color dorsally and silvery white ventrally with red fleshy tip on lower jaw; depth of body about 6.7 in SL; well developed anterior lobe of dorsal fin; body width contained 1.1-1.3 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 | 0 |
| Gill clefts (sharks/rays only) | |
| Gill rakers | |
| on lower limb | 26 - 32 |
| on upper limb | 10 - 14 |
| total | 33 - 47 |
| Vertebrae | |
| preanal | 38 - 42 |
| total | 56 - 60 |
| Attributes | no striking attributes |
| Fins number | 1 |
| Finlets No. | Dorsal 0 - 0 |
| Ventral 0 - 0 | |
| Spines total | 0 - 0 |
| Soft-rays total | 14 - 16 |
| Adipose fin | absent |
| Attributes | forked; asymmetric |
| Fins number | 1 |
| Spines total | 0 - 0 |
| Soft-rays total | 14 - 16 |
| Pectoral | Attributes more or less normal |
| Spines 0 | |
| Soft-rays 11 - 12 | |
| Pelvics | Attributes more or less normal |
| Position | |
| Spines 0 | |
| Soft-rays |