| Main Ref. | Shcherbachev, Y.N., Y.I. Sazonov and T. Iwamoto, 1992 |
| Appearance refers to | |
| Bones in OsteoBase |
| Specialized organs | |
| Different appearance | |
| Different colors | |
| Remarks |
| Striking features | |
| Body shape lateral (shape guide) | elongated |
| Cross section | |
| Dorsal head profile | |
| Type of eyes | |
| Type of mouth/snout | |
| Position of mouth | |
| Type of scales | |
| Diagnosis |
12 mesial gill rakers on first arch; eight scales below origin of second dorsal fin; no bulblike swelling of light organ, anterior dermal window represented by a small scaleless area between midbases of pelvic fins; pores of sensory canals on head small but present; color gray-brown, fins dark. Pelvic fins with long filamentous ray extending to about 13th anal ray. |
| 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 | |
| total |
| Attributes | |
| Fins number | 2 |
| Finlets No. | Dorsal 0 - 0 |
| Ventral 0 - 0 | |
| Spines total | 2 - 2 |
| Soft-rays total | |
| Adipose fin | absent |
| Attributes |
| Fins number | 1 |
| Spines total | |
| Soft-rays total |
| Pectoral | Attributes more or less normal |
| Spines 0 | |
| Soft-rays 17 - 23 | |
| Pelvics | Attributes other (see remarks) |
| Position thoracic beneath origin of D1 | |
| Spines 0 | |
| Soft-rays 11 - 11 |