Morphology Data of Fluviphylax pygmaeus
Identification keys
Abnormalities
Main Ref. Costa, W.J.E.M., 1996
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 elongated
Cross section
Dorsal head profile
Type of eyes
Type of mouth/snout
Position of mouth
Type of scales
Diagnosis

Elongate pelvic and anal fins of males; the tip of pelvic fin surpasses the end of anal-fin base and the tip of the anal fin, which is uniquely pointed, reaches to a vertical posterior to dorsal-fin base.

Ease of Identification

Meristic characteristics of Fluviphylax pygmaeus

Lateral Lines Interrupted: No
Scales on lateral line
Pored lateral line scales
Scales in lateral series
Scale rows above lateral line
Scale rows below lateral line
Scales around caudal peduncle 12 - 12
Barbels
Gill clefts (sharks/rays only)
Gill rakers
on lower limb
on upper limb
total
Vertebrae
preanal
total 26 - 27

Fins

Dorsal fin(s)

Attributes
Fins number 1
Finlets No. Dorsal   
Ventral  
Spines total
Soft-rays total 6 - 7
Adipose fin

Caudal fin

Attributes

Anal fin(s)

Fins number
Spines total
Soft-rays total 8 - 10

Paired fins

Pectoral Attributes  
Spines     
Soft-rays   10 - 11
Pelvics Attributes  
Position    
Spines     
Soft-rays   6 - 6
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