| Main Ref. | Myers, R.F., 1991 |
| 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 | |
| Diagnose |
Characterized by semi-transparent upper body and brownish on lower; body with few evident dark bars; 3-6 lowermost pectoral rays unbranched and thickened; longitudinal scale series 26-58; cup-like pelvic fins with pocket-like thickened, folded and lobed frenum; opening of gill reaching ventrally to below base of pectoral fin (Ref. 90102). |
| 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 | 8 - 9 |
| on upper limb | 2 - 3 |
| insgesamt | 10 - 11 |
| Wirbelzahl | |
| preanal | |
| insgesamt |
| Attributes | |
| Fins number | 2 |
| Finlets No. | Dorsal |
| Ventral | |
| Spines total | 7 - 7 |
| Soft-rays total | 7 - 10 |
| Adipose fin |
| Attributes |
| Fins number | 1 |
| Spines total | 1 - 1 |
| Soft-rays total | 7 - 10 |
| Pectoral | Attributes |
| Spines 0 | |
| Soft-rays 13 - 17 | |
| Pelvics | Attributes |
| Position | |
| Spines | |
| Soft-rays |