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

Sex attributes

Specialized organs no special organs
Different appearance males alike females
Different colors males alike females
Remarks

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 fontanella absent in adults and porelinke in juveniles, disappearing with growth; snout long, comprised three times in head length; dorsal-fin origin distincly behind pelvic-fin insertions; head broad; adults large-sized; no sexual dimorphism affecting anal-fin shape in adult males; body depth less than three times in the standard length in adults; 8-12 teeth in outer premaxillary row; 4.5 scales above lateral line; 21-23 lateral line scales; 13-15 anal fin branched rays; 18-20 gill rakers on lower part of first branchial arch (Ref. 2880, 81279).

Description: supraorbital bone thick; even in largest specimen, snout projecting only slightly beyond lower jaw; dorsal-fin origin at about midpoint of space between pelvic-fin insertions and anal-fin origin; anal fin with 3 branched and 13-15 unbranched rays (Ref. 2880, 81279).

Coloration: uniformly brown back, silvery sides and white belly (Ref. 2880, 81279).

Ease of Identification

Meristic characteristics of Brycinus brevis

Lateral Lines 1 Interrupted: No
Scales on lateral line 21 - 23
Pored lateral line scales
Scales in lateral series
Scale rows above lateral line 4.5 - 4.5
Scale rows below lateral line 2.5 - 2.5
Scales around caudal peduncle
Barbels 0
Gill clefts (sharks/rays only)
Gill rakers
on lower limb 18 - 20
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 - 18

Paired fins

Pectoral Attributes  more or less normal
Spines     
Soft-rays   
Pelvics Attributes  more or less normal
Position    abdominal  before origin of D1
Spines     
Soft-rays   
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
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