Morphology Data of Brycinus leuciscus
Identification keys
Abnormalities
Main Ref. Paugy, D., 2003
Appearance refers to
Bones in OsteoBase

Sex attributes

Specialized organs no special organs
Different appearance always different morphology between mature adults
Different colors males alike females
Remarks Sexual dimorphism affection the anal-fin shape in adult males.

Descriptive characteristics of juvenile and adult

Striking features none
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: parietal fontanel always present, also in adults, open; equal sized jaws; 5.5 scales above lateral line; 26-31 lateral line scales; 13-17 anal fin branched rays; 6/8 premaxillary teeth; 13-17 gill rakers on lower limb of first gill arch; gill rakers short (Ref. 2880, 81279).

Description: sexual dimorphism in males with convex anal fin, females and juveniles with straight or concave anal fin; dorsal-fin origin at about the same level as pelvic-fin insertion; anal fin with 3 unbranched and 13-17 branched rays; six premaxillary teeth aligned in single row (Ref. 2880, 81279).

Colouration: humeral spot black; claviform mark on caudal peduncle extending to fork of caudal fin black; back grey-green, sides silvery and ventral portion white; all fins yellow; zone above eye marked with yellow; dark longitudinal band below lateral line, better visible in formalin-preserved specimens (Ref. 2880, 81279).

Ease of Identification

Meristic characteristics of Brycinus leuciscus

Lateral Lines 1 Interrupted: No
Scales on lateral line 26 - 31
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 - 19
on upper limb
total
Vertebrae
preanal
total

Fins

Dorsal fin(s)

Attributes no striking attributes
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 16 - 20

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 )
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