| Main Ref. | Sato, T. and T. Nakabo, 2003 |
| 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 | |
| Type of scales | |
| Diagnosis |
Dorsal and caudal fins without any dark marks, 12-14 pectoral fin rays, and usually 16-19 gill rakers (Ref. 49923). Pectoral fin short, not reaching posteriorly to posterior end of dorsal fin base; pelvic fin very long, length 24.6-30.9% of SL (Ref. 49923). |
| Ease of Identification |
| Lateral Lines | Interrupted: No |
| Scales on lateral line | |
| Pored lateral line scales | 41 - 43 |
| Scales in lateral series | |
| Scale rows above lateral line | 3.5 - 3.5 |
| Scale rows below lateral line | 3.5 - 3.5 |
| Scales around caudal peduncle | |
| Barbels | |
| Gill clefts (sharks/rays only) | |
| Gill rakers | |
| on lower limb | 4 - 5 |
| on upper limb | 14 - 16 |
| total | 19 - 21 |
| Vertebrae | |
| preanal | |
| total | 42 - 43 |
| Attributes | |
| Fins number | 1 |
| Finlets No. | Dorsal 0 - 0 |
| Ventral 0 - 0 | |
| Spines total | 0 - 0 |
| Soft-rays total | 11 - 11 |
| Adipose fin | present |
| Attributes | forked; more or less normal |
| Fins number | 1 |
| Spines total | 0 - 0 |
| Soft-rays total | 8 - 9 |
| Pectoral | Attributes other (see remarks) |
| Spines 0 | |
| Soft-rays 12 - 14 | |
| Pelvics | Attributes rays very elongated |
| Position abdominal behind origin of D1 | |
| Spines 0 | |
| Soft-rays 9 - 9 |