Morphology Data of Clarias insolitus
Identification keys
Main Ref. Ng, H.H., 2003
Appearance refers to
Bones in OsteoBase

Sex attributes

Specialized organs
Different appearance
Different colors

Descriptive characteristics of juvenile and adult

Striking features
Body shape lateral elongated
Cross section
Dorsal head profile clearly convex
Type of eyes
Type of mouth/snout
Position of mouth sub-terminal/inferior
Type of scales

Hypertrophied sensory canal pores on the head and body easily visible to the naked eye; having a long and thin anterior fontanel (except for Clarias batrachus); having prominent serrations on the anterior edge of the pectoral spine (except for Clarias intermedius, Clarias meladerma, Clarias olivaceus and Clarias planiceps); lacking white spots on the body (except for Clarias olivaceus and Clarias planiceps); distance between the tip of the occipital process and the base of the first dorsal fin ray 10.3-12.4% SL; body depth 9.9-11.5% SL; head width 14.0-15.6% SL; snout length 32.5-37.7% SL; interorbital distance 39.4-43.6% SL (Ref. 51071).

Ease of Identification

Meristic characteristics of Clarias insolitus

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 61 - 63


Dorsal fin(s)

Fins number 1
Finlets No. Dorsal   
Spines total 0 - 0
Soft-rays total 67 - 76
Adipose fin

Caudal fin

Attributes more or less truncate

Anal fin(s)

Fins number
Spines total
Soft-rays total 53 - 63

Paired fins

Pectoral Attributes  
Spines     1
Soft-rays   8 - 8
Pelvics Attributes  
Position    abdominal  behind origin of D1
Spines     0
Soft-rays   6 - 6
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
Entered by Torres, Armi G.
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