| Main Ref. | Walsh, S.J. and C.R. Gilbert, 1995 |
| Appearance refers to | |
| Bones in OsteoBase |
| Specialized organs | no special organs |
| Different appearance | |
| Different colors | |
| Remarks |
| Striking features | striking eyes |
| Body shape lateral | elongated |
| Cross section | compressed |
| Dorsal head profile | clearly convex |
| Type of eyes | eyes absent |
| Type of mouth/snout | more or less normal |
| Position of mouth | sub-terminal/inferior |
| Type of scales | |
| Diagnosis |
Endopterygoid present; principal caudal fin rays 8+9; hypural fusion pattern of caudal fin PH;1+2;3+4+5. Branchiostegal rays 8; gill rakers 17; swim bladder reduced or absent; emarginate to weakly forked caudal fin; deeply notched adipose fin; head length 25.4% of SL; pelvic fin length 12.4% of SL. |
| Ease of Identification | likely to be confused with closely related species. |
| 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 | 8 |
| Gill clefts (sharks/rays only) | |
| Gill rakers | |
| on lower limb | |
| on upper limb | |
| total | 17 |
| Vertebrae | |
| preanal | |
| total | 37 |
| Attributes | no striking attributes |
| Fins number | 1 |
| Finlets No. | Dorsal |
| Ventral | |
| Spines total | |
| Soft-rays total | 7 |
| Adipose fin | present |
| Attributes | forked; more or less normal |
| Fins number | 1 |
| Spines total | |
| Soft-rays total | 16 |
| Pectoral | Attributes more or less normal |
| Spines | |
| Soft-rays 10 | |
| Pelvics | Attributes more or less normal |
| Position abdominal behind origin of D1 | |
| Spines | |
| Soft-rays 8 |