Morphology Data of Eigenmannia nigra
Identification keys
Abnormalities
Main Ref. Mago-Leccia, F., 1994
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
Cross section
Dorsal head profile
Type of eyes
Type of mouth/snout
Position of mouth
Type of scales
Diagnosis

Peculiar black phase coloration and large size. No horizontal dark stripes on body; anal fin either completely black or with dark margin; a marked dark humeral blotch; dorsal head profile strongly convex; snout length less than two eye diameters; interocular distance 30-40% in head length; gape almost the length of the snout; pectoral fin 69-75% in head length.

Ease of Identification

Meristic characteristics of Eigenmannia nigra

Lateral Lines Interrupted: No
Scales on lateral line
Pored lateral line scales
Scales in lateral series
Scale rows above lateral line 19 - 23
Scale rows below lateral line
Scales around caudal peduncle
Barbels
Gill clefts (sharks/rays only)
Gill rakers
on lower limb
on upper limb
total 10 - 12
Vertebrae
preanal 14 - 14
total

Fins

Dorsal fin(s)

Attributes
Fins number
Finlets No. Dorsal   
Ventral  
Spines total 0 - 0
Soft-rays total 0 - 0
Adipose fin

Caudal fin

Attributes

Anal fin(s)

Fins number 1
Spines total
Soft-rays total 231 - 247

Paired fins

Pectoral Attributes  
Spines     
Soft-rays   17 - 21
Pelvics Attributes  
Position    
Spines     0
Soft-rays   0 - 0
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cfm script by eagbayani, 17.10.00, php script by rolavides, 13/03/08 ,  last modified by sortiz, 06.27.17