| Main Ref. | Cohen, D.M., T. Inada, T. Iwamoto and N. Scialabba, 1990 |
| Appearance refers to | |
| Bones in OsteoBase |
| Specialized organs | |
| Different appearance | |
| Different colors | |
| Remarks |
| Striking features | striking fins |
| Body shape lateral | fusiform / normal |
| Cross section | circular |
| Dorsal head profile | clearly convex |
| Type of eyes | more or less normal |
| Type of mouth/snout | more or less normal |
| Position of mouth | terminal |
| Diagnosis |
Body elongated; head small; eyes small. First dorsal-fin ray elongated; pelvic fins extending beyond the origin of the anal fin. Mottled pattern on back and upper sides. |
| Ease of Identification |
| Lateral Lines | 1 Interrupted: No |
| Scales on lateral line | 133 - 135 |
| Pored lateral line scales | |
| Scales in lateral series | |
| Scale rows above lateral line | 13 |
| Scale rows below lateral line | |
| Scales around caudal peduncle | |
| Barbels | 1 |
| Gill clefts (sharks/rays only) | |
| Gill rakers | |
| on lower limb | |
| on upper limb | 2 - 2 |
| total | 14 - 15 |
| Vertebrae | |
| preanal | |
| total |
| Attributes | first fin ray very elongated |
| Fins number | 2 |
| Finlets No. | Dorsal 0 - 0 |
| Ventral 0 - 0 | |
| Spines total | 0 - 0 |
| Soft-rays total | 62 - 69 |
| Adipose fin | absent |
| Attributes | other (see remark); more or less normal |
| Fins number | 1 |
| Spines total | 0 - 0 |
| Soft-rays total | 43 - 46 |
| Pectoral | Attributes more or less normal |
| Spines 0 | |
| Soft-rays 17 - 18 | |
| Pelvics | Attributes rays very elongated |
| Position thoracic before origin of D1 | |
| Spines 0 | |
| Soft-rays 2 - 2 |