| Main Ref. | Collette, B.B. and J. Su, 1986 |
| Appearance refers to | |
| Bones in OsteoBase |
| Specialized organs | |
| Different appearance | |
| Different colors | |
| Remarks |
| Striking features | |
| Body shape lateral | elongated |
| Cross section | |
| Dorsal head profile | |
| Type of eyes | |
| Type of mouth/snout | |
| Position of mouth | |
| Diagnosis |
Very strongly pronounced domed upper jaw which is the longest and most arched of the four species of Rhynchorhamphus. |
| 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 | 36 - 44 |
| on upper limb | 10 - 14 |
| total | 47 - 67 |
| Vertebrae | |
| preanal | 37 - 40 |
| total | 54 - 59 |
| Attributes | |
| Fins number | 1 |
| Finlets No. | Dorsal |
| Ventral | |
| Spines total | 0 - 0 |
| Soft-rays total | 13 - 17 |
| Adipose fin |
| Attributes |
| Fins number | 1 |
| Spines total | 0 - 0 |
| Soft-rays total | 13 - 16 |
| Pectoral | Attributes |
| Spines 0 | |
| Soft-rays | |
| Pelvics | Attributes |
| Position | |
| Spines 0 | |
| Soft-rays |