| Main Ref. | Iwamoto, T., D. Golani, A. Baranes and M. Goren, 2006 |
| Appearance refers to | |
| Bones in OsteoBase |
| Specialized organs | |
| Different appearance | |
| Different colors | |
| Remarks |
| Striking features | |
| Body shape lateral | elongated |
| Cross section | compressed |
| Dorsal head profile | |
| Type of eyes | |
| Type of mouth/snout | |
| Position of mouth | |
| Type of scales | |
| Diagnosis |
Light organ small, not externally visible. Anterolateral snout margin not entirely supported by bone. Snout pointed with underside covered with tiny scales. Nasal fossa almost entirely naked. Space between two dorsal small usually less than the base of the first dorsal. Overall coloration dark brown in large adults, lighter brown in smaller individuals. Fins all blackish. |
| 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 | |
| on upper limb | |
| total | |
| Vertebrae | |
| preanal | |
| total |
| Attributes | |
| Fins number | 2 |
| Finlets No. | Dorsal |
| Ventral | |
| Spines total | 2 - 2 |
| Soft-rays total | 8 - 9 |
| Adipose fin |
| Attributes |
| Fins number | |
| Spines total | |
| Soft-rays total |
| Pectoral | Attributes |
| Spines 1 | |
| Soft-rays 16 - 18 | |
| Pelvics | Attributes |
| Position | |
| Spines | |
| Soft-rays 7 - 7 |