| Main Ref. | Randall, J.E., G.R. Allen and R.C. Steene, 1990 |
| Appearance refers to | Male; Female |
| Bones in OsteoBase |
| Specialized organs | |
| Different appearance | |
| Different colors | |
| Remarks |
| Striking features | |
| Body shape lateral | fusiform / normal |
| Cross section | compressed |
| Dorsal head profile | more or less straight |
| Type of eyes | eyes with fixed fatty (adipose) tissue/eyelids |
| Type of mouth/snout | more or less normal |
| Position of mouth | terminal |
| Type of scales | cycloid scales |
| Diagnosis |
Description: Bluish grey to green dorsally; shading to silvery on side and belly; dark fins. Opercle with large black spot on upper rear edge (Ref. 2334). Body elongate and subcylindrical, slightly compressed; caudal peduncle strongly compressed with distinct median keel; breast scaleless ventrally (Ref. 90102). LL scutes 51-59, strong and very large. Anal fin with 2 detached spines (Ref. 2334). Numerous dorsal and anal finlets are distinct (Ref. 37816). Adipose eyelid completely covering eye except for vertical slit at middle of pupil (Ref. 90102). |
| Ease of Identification |
| Lateral Lines | 1 Interrupted: No |
| Scales on lateral line | 21 - 28 |
| Pored lateral line scales | |
| 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 | 18 - 22 |
| on upper limb | 8 - 11 |
| total | 26 - 33 |
| Vertebrae | |
| preanal | |
| total |
| Attributes | no striking attributes |
| Fins number | 2 |
| Finlets No. | Dorsal 7 - 9 |
| Ventral 8 - 10 | |
| Spines total | 9 - 9 |
| Soft-rays total | 18 - 20 |
| Adipose fin | absent |
| Attributes | forked; more or less normal |
| Fins number | 2 |
| Spines total | 3 - 3 |
| Soft-rays total | 16 - 17 |
| Pectoral | Attributes more or less normal |
| Spines | |
| Soft-rays | |
| Pelvics | Attributes more or less normal |
| Position thoracic before origin of D1 | |
| Spines | |
| Soft-rays |