Morphology Data of Synodontis nigromaculatus
Identification keys
Abnormalities
Main Ref. Skelton, P.H., 2001
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 fusiform / normal
Cross section
Dorsal head profile
Type of eyes
Type of mouth/snout
Position of mouth
Type of scales
Diagnosis

Description: Body deep (Ref. 52193). Barbels long and slender, with filamentous branches; mandibular teeth 21-43 in a broad band (Ref. 52193). Humeral process triangular, pointed (Ref. 52193). Dorsal fin with 1 spine and 7 soft rays; anal fin with 4-6 unbranched and 7-9 branched rays; caudal fin forked (Ref. 52193).

Colouration: Olive green, entire body covered with round black spots about the sizeof the eye (Ref. 52193).

Ease of Identification

Meristic characteristics of Synodontis nigromaculatus

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
Barbels
Gill clefts (sharks/rays only)
Gill rakers
on lower limb
on upper limb
total
Vertebrae
preanal
total

Fins

Dorsal fin(s)

Attributes no striking attributes
Fins number 1
Finlets No. Dorsal   
Ventral  
Spines total 1 - 1
Soft-rays total 7 - 7
Adipose fin present

Caudal fin

Attributes forked; more or less normal

Anal fin(s)

Fins number 1
Spines total 0 - 0
Soft-rays total 11 - 15

Paired fins

Pectoral Attributes  more or less normal
Spines     
Soft-rays   
Pelvics Attributes  more or less normal
Position    abdominal  behind origin of D1
Spines     
Soft-rays   
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