| Main Ref. | Yabe, M., A. Soma and K. Amaoka, 2001 |
| 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 |
No spines on upper posterior margin of orbit, parietal, or posttemporal; a single common opening of terminal mandibular pore just behind symphysis; a slender cirrus on base of nasal spine; uppermost preopercular spine without denticles dorsally; two dorsal scale rows originating under 1st or 2nd spine on first dorsal fin, terminating before posterior end of second dorsal fin base; scales absent on pectoral axilla; first dorsal fin moderate, anterior spines not produced; pelvic fin extending more than one-third distance to origin of anal fin (Ref. 45337). |
| Ease of Identification |
| Lateral Lines | Interrupted: No |
| Scales on lateral line | 34 - 36 |
| 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 | 32 - 34 |
| Attributes | |
| Fins number | 2 |
| Finlets No. | Dorsal 0 - 0 |
| Ventral 0 - 0 | |
| Spines total | 10 - 10 |
| Soft-rays total | 13 - 14 |
| Adipose fin | absent |
| Attributes | more or less truncate; more or less normal |
| Fins number | 1 |
| Spines total | 0 - 0 |
| Soft-rays total | 11 - 12 |
| Pectoral | Attributes very large , lobe-like |
| Spines 0 | |
| Soft-rays 16 - 16 | |
| Pelvics | Attributes |
| Position thoracic before origin of D1 | |
| Spines 1 | |
| Soft-rays 2 - 2 |