| Main Ref. | Randall, J.E., G.R. Allen and R.C. Steene, 1990 |
| Appearance refers to | |
| Bones in OsteoBase |
| Specialized organs | |
| Different appearance | |
| Different colors | |
| Remarks |
| Striking features | none |
| Body shape lateral | elongated |
| Cross section | compressed |
| Dorsal head profile | more or less straight |
| Type of eyes | more or less normal |
| Type of mouth/snout | more or less normal |
| Position of mouth | terminal |
| Type of scales | cycloid scales |
| Diagnosis |
Dorsal half of body dark, or without distinct markings. Anteriormost pair of teeth on lower jaw distinctly larger than other teeth. First dorsal spin in males elongated. Caudal fin emarginate or truncate (Ref. 43239). |
| Ease of Identification |
| Lateral Lines | 1 Interrupted: No |
| Scales on lateral line | 66 - 77 |
| Pored lateral line scales | 70 - 72 |
| Scales in lateral series | |
| Scale rows above lateral line | |
| Scale rows below lateral line | |
| Scales around caudal peduncle | |
| Barbels | 0 |
| Gill clefts (sharks/rays only) | |
| Gill rakers | |
| on lower limb | |
| on upper limb | |
| total | |
| Vertebrae | |
| preanal | |
| total |
| Attributes | no striking attributes |
| Fins number | 1 |
| Finlets No. | Dorsal 0 - 0 |
| Ventral 0 - 0 | |
| Spines total | 9 - 9 |
| Soft-rays total | 12 - 12 |
| Adipose fin | absent |
| Attributes | more or less truncate; more or less normal |
| Fins number | 1 |
| Spines total | 3 - 3 |
| Soft-rays total | 12 - 12 |
| Pectoral | Attributes more or less normal |
| Spines 0 | |
| Soft-rays 13 - 13 | |
| Pelvics | Attributes more or less normal |
| Position thoracic behind origin of D1 | |
| Spines | |
| Soft-rays |