| Main Ref. | Murdy, E.O. and K. Shibukawa, 2003 |
| Appearance refers to | |
| Bones in OsteoBase |
| Specialized organs | |
| Different appearance | |
| Different colors | |
| Remarks |
| Striking features | |
| Body shape lateral | fusiform / normal |
| Cross section | compressed |
| Dorsal head profile | |
| Type of eyes | other (see remarks) |
| Type of mouth/snout | other (see remarks) |
| Position of mouth | |
| Type of scales | scales embedded or partly/completely absent |
| Diagnosis |
Head and body tan brown; chin with diffused blackish blotch; dorsal surface of head along dorsum to caudal fin dusky brown; midpoint of caudal fin posteriad blackish; other fins translucent. Cycloid scales embedded on head and body, non-imbricated. Eyes rudimentary but distinct, covered by skin. Mouth oblique, with 8 small barbels on underside of chin (small barbels occasionally on juveniles). Pectoral -fin rays free and silk-like (Ref. 45316). |
| 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 | 10 - 10 |
| total | 30 - 31 |
| Attributes | |
| Fins number | 2 |
| Finlets No. | Dorsal |
| Ventral | |
| Spines total | 6 - 6 |
| Soft-rays total | 38 - 42 |
| Adipose fin |
| Attributes | more or less normal |
| Fins number | 1 |
| Spines total | 1 - 1 |
| Soft-rays total | 36 - 41 |
| Pectoral | Attributes other (see remarks) |
| Spines 0 | |
| Soft-rays 40 - 51 | |
| Pelvics | Attributes joint, cup-like |
| Position thoracic before origin of D1 | |
| Spines 1 | |
| Soft-rays 5 - 5 |