| 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 | different colors during breeding season only |
| Remarks | Courtship sometimes observed (usually at dusk) with pairs swimming together, the male assuming black color (Ref. 90102). |
| 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 |
| Diagnosis |
Description: Silvery olive to iridescent blue-green dorsally, shading to silvery olive to whitish on side; small black spot on uppermost rear edge of opercle; olive to blackish second dorsal fin with white tip on anterior lobe; caudal yellowish to black (Ref. 2334, 90102). Body oblong and compressed; dorsal profile moderately convex anteriorly, ventral profile slightly convex (Ref. 90102). Breast fully scaled. LL scutes 27-36, strong and dark (Ref. 2334, 90102). Pectoral fins falcate; anal fin with 2 detached spines (Ref. 2334). Adipose eyelid well developed (Ref. 90102). |
| Ease of Identification |
| Lateral Lines | 1 Interrupted: No |
| Scales on lateral line | 0 - 3 |
| 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 | 15 - 19 |
| on upper limb | 6 - 8 |
| total | 21 - 27 |
| Vertebrae | |
| preanal | |
| total |
| Attributes | no striking attributes |
| Fins number | 2 |
| Finlets No. | Dorsal |
| Ventral | |
| Spines total | 9 - 9 |
| Soft-rays total | 19 - 22 |
| Adipose fin | absent |
| Attributes | forked; more or less normal |
| Fins number | 2 |
| Spines total | 3 - 3 |
| Soft-rays total | 14 - 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 |