Morphology Data of Moenkhausia levidorsa
Identification keys
Abnormalities
Main Ref. Benine, R.C., 2002
Appearance refers to
Bones in OsteoBase

Sex attributes

Specialized organs
Different appearance
Different colors
Remarks Mature males with 2-4 posteriorly-directed hooks per anal-fin ray segment. The number of hooked anal-fin ray segments decreases posteriorly.

Descriptive characteristics of juvenile and adult

Striking features
Body shape lateral short and / or deep
Cross section compressed
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

No scales long the predorsal region. Posterior edge of scales with chromatophores, enhancing the limit between these. Body deep (2-2.2 times in SL), greatest depth at dorsal-fin origin. Anal fin elongate. D ii; P1 i; P2 i; A iv.

Ease of Identification

Meristic characteristics of Moenkhausia levidorsa

Lateral Lines Interrupted: No
Scales on lateral line 31 - 34
Pored lateral line scales 31 - 34
Scales in lateral series
Scale rows above lateral line 6 - 7
Scale rows below lateral line 6 - 6
Scales around caudal peduncle 13 - 14
Barbels
Gill clefts (sharks/rays only)
Gill rakers
on lower limb 10 - 12
on upper limb 7 - 9
total
Vertebrae
preanal 14 - 14
total 33 - 33

Fins

Dorsal fin(s)

Attributes
Fins number
Finlets No. Dorsal   
Ventral  
Spines total
Soft-rays total 9 - 9
Adipose fin present

Caudal fin

Attributes forked; more or less normal

Anal fin(s)

Fins number
Spines total
Soft-rays total 26 - 35

Paired fins

Pectoral Attributes  more or less normal
Spines     
Soft-rays   12 - 12
Pelvics Attributes  more or less normal
Position    abdominal  before origin of D1
Spines     
Soft-rays   7 - 7
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
Entered by Capuli, Estelita Emily
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