Morphology Data of Brycinus longipinnis
Identification keys
Abnormalities
Main Ref. Paugy, D. and S.A. Schaefer, 2007
Appearance refers to Male; Female
Bones in OsteoBase

Sex attributes

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).

Descriptive characteristics of juvenile and adult

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

Meristic characteristics of Brycinus longipinnis

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

Fins

Dorsal fin(s)

Attributes other
Fins number 1
Finlets No. Dorsal   
Ventral  
Spines total
Soft-rays total
Adipose fin present

Caudal fin

Attributes forked; more or less normal

Anal fin(s)

Fins number 1
Spines total 0 - 0
Soft-rays total 18 - 26

Paired fins

Pectoral Attributes  more or less normal
Spines     
Soft-rays   
Pelvics Attributes  more or less normal
Position    abdominal  beneath origin of D1
Spines     
Soft-rays   
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
Entered by Palomares, Maria Lourdes D.
Modified by Geelhand, Dimitri
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