Main Ref. | Paugy, D. and S.A. Schaefer, 2007 |
Appearance refers to | Male; Female |
Bones in OsteoBase |
Specialized organs | no special organs |
Different appearance | always different morphology between mature adults |
Different colors | always different colors between mature adults |
Remarks | Sexual dimorphism affecting anal-fin shape in adult males which have first rays of dorsal and pelvic fins rays prolonged, the dorsal filament extending beyond the adipose fin, and pelvic filament reaching to anal fin, when pressed to body; in sexually mature males body depth increases with growth at faster rate than females (Ref. 80290). |
Striking features | striking fins |
Body shape lateral | fusiform / normal |
Cross section | |
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 |
Diagnosis: fronto-parietal fontanel narrow, but always present; 25-34 lateral line scales; 5.5 scales between lateral line and dorsal fin; 15-23 anal fin branched rays; 13-15 gill rakers on lower limb of first gill arch; 6 teeth in outer premaxillary row (Ref. 2880, 80290, 81279). Head length/snout length 3.3-4.4; 8.5-11.5 predorsal scales (Ref. 80290). Precaudal spot elongate, extending to end of caudal fin (Ref. 81279). Description: dorsal-fin origin at about same level as pelvic-fin insertions; anal fin with 3 branched and 15-23 unbranched rays; jaws equal, six outer premaxillary teeth aligned in one row; sexual dimorphism affecting anal-fin shape in adult males which have first rays of dorsal and pelvic fins rays prolonged, the dorsal filament extending beyond the adipose fin, and pelvic filament reaching to anal fin, when pressed to body; in sexually mature males body depth increases with growth at faster rate than females (Ref. 2880, 80290, 81279). Coloration: humeral spot; broad precaudal band extending over entire length of caudal peduncle and continuing backwards on median caudal-fin rays to hind margin of caudal fork; body color silvery, back greenish and belly white; adult males with unpaired fins and sometimes also terminal filaments of pelvic fins red-violet, bright red spot above eye; females with pale orange fins, yellow blotch on each caudal-fin lobe, orange spot above eye (Ref. 2880, 80290, 81279). |
Ease of Identification |
Lateral Lines | 1 Interrupted: No |
Scales on lateral line | 25 - 34 |
Pored lateral line scales | |
Scales in lateral series | |
Scale rows above lateral line | 5.5 - 5.5 |
Scale rows below lateral line | 3.5 - 3.5 |
Scales around caudal peduncle | |
Barbels | 0 |
Gill clefts (sharks/rays only) | |
Gill rakers | |
on lower limb | 13 - 15 |
on upper limb | |
total | |
Vertebrae | |
preanal | |
total |
Attributes | other |
Fins number | 1 |
Finlets No. | Dorsal |
Ventral | |
Spines total | |
Soft-rays total | |
Adipose fin | present |
Attributes | forked; more or less normal |
Fins number | 1 |
Spines total | 0 - 0 |
Soft-rays total | 18 - 26 |
Pectoral | Attributes more or less normal |
Spines | |
Soft-rays | |
Pelvics | Attributes more or less normal |
Position abdominal beneath origin of D1 | |
Spines | |
Soft-rays |