Morphology Data of Clarias sulcatus
Identification keys
Abnormalities
Main Ref. Ng, H.H., 2004
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 sub-terminal/inferior
Type of scales
Diagnosis

Distinguished from Southeast Asian congeners, except Clarias batrachus and C. insolitus in having a narrow frontal fontanel. Differs from C. batrachus in possessing more anal-fin rays (56-64 vs. 47-58) and a broader snout and from C. insolitus in having a wider head (17.4-18.3% SL vs. 14.0-15.6) and a smaller distance between the occipital process and the dorsal fin (7.2-7.5% SL vs. 10.3-12.4) (Ref. 55369).

Ease of Identification

Meristic characteristics of Clarias sulcatus

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 8
Gill clefts (sharks/rays only)
Gill rakers
on lower limb
on upper limb
total 14 - 14
Vertebrae
preanal
total 62 - 64

Fins

Dorsal fin(s)

Attributes extending over most of the back length
Fins number 1
Finlets No. Dorsal   
Ventral  
Spines total 0 - 0
Soft-rays total 72 - 80
Adipose fin absent

Caudal fin

Attributes more or less truncate

Anal fin(s)

Fins number
Spines total
Soft-rays total 56 - 64

Paired fins

Pectoral Attributes  
Spines     1
Soft-rays   8 - 8
Pelvics Attributes  
Position    abdominal  behind origin of D1
Spines     
Soft-rays   6 - 6
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
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