Morphology Summary - Moenkhausia aurora
Morphology Data of Moenkhausia aurora
Identification keys
Abnormalities
Main Ref. Reia, L., G.S.C. Silva, C. Oliveira and Benine R.C., 2024
Appearance refers to
Bones in OsteoBase

Sex attributes

Specialized organs
Different appearance
Different colors
Remarks

Descriptive characteristics of juvenile and adult

Striking features
Body shape lateral  (shape guide) fusiform / normal
Cross section compressed
Dorsal head profile
Type of eyes
Type of mouth/snout
Position of mouth
Type of scales
Diagnosis

This species is distinguished from its congeners by the following set of characters: presence of reddish body color in life specimens; absence of dark pigmentation on anteriormost rays of the anal fin; number of scales between lateral line and pelvic-fin origin 4; number of unbranched anal-fin rays iii; absence of a humeral blotch; number of maxillary teeth 2-3; absence of dark pigmentation on caudal-fin lobes; number of gill rakers on the first arch 9-14+1+ 6-8; concentration of dark pigments on the anterior margin of the caudal-fin rays (Ref. 132464).

Ease of Identification

Meristic characteristics of Moenkhausia aurora

Lateral Lines Interrupted: No
Scales on lateral line
Pored lateral line scales 34 - 36
Scales in lateral series
Scale rows above lateral line 5 - 6
Scale rows below lateral line 4 - 4
Scales around caudal peduncle
Barbels
Gill clefts (sharks/rays only)
Gill rakers
on lower limb
on upper limb
total
Vertebrae
preanal
total 33 - 33

Fins

Dorsal fin(s)

Attributes
Fins number
Finlets No. Dorsal   
Ventral  18 - 22
Spines total
Soft-rays total 9 - 9
Adipose fin

Caudal fin  (shape guide)

Attributes

Anal fin(s)

Fins number
Spines total
Soft-rays total

Paired fins

Pectoral Attributes  
Spines     
Soft-rays   10 - 12
Pelvics Attributes  
Position    
Spines     
Soft-rays   
(e.g. 9948)
(e.g. oophagy)
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