Morphology Data of Johnius distinctus
Identification keys
Main Ref. Sasaki, K. and K. Amaoka, 1989
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 fusiform / normal
Cross section
Dorsal head profile
Type of eyes
Type of mouth/snout
Position of mouth

Swim bladder hammer-shaped with a series of arborescent appendages along its sides. Lower jaw with a row of enlarged teeth. Jaws short. Last pleural rib on the 11th vertebra.

Ease of Identification

Meristic characteristics of Johnius distinctus

Lateral Lines 1 Interrupted: No
Scales on lateral line 49 - 50
Pored lateral line scales
Scales in lateral series
Scale rows above lateral line 7 - 11
Scale rows below lateral line 13 - 14
Scales around caudal peduncle
Gill clefts (sharks/rays only)
Gill rakers
on lower limb 10 - 13
on upper limb 5 - 6
preanal 10 - 11
total 25 - 25


Dorsal fin(s)

Fins number 2
Finlets No. Dorsal   
Spines total 10 - 10
Soft-rays total 28 - 31
Adipose fin

Caudal fin


Anal fin(s)

Fins number 1
Spines total 2 - 2
Soft-rays total 7 - 7

Paired fins

Pectoral Attributes  
Spines     0
Soft-rays   18 - 20
Pelvics Attributes  
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
Entered by Binohlan, Crispina B.
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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