Morphology Data of Polydactylus opercularis
Identification keys
Abnormalities
Main Ref. Motomura, H., S. Kimura and Y. Iwatsuki, 2002
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

Body and fins yellowish; no stripes or spots. Anterior parts of lower jaw with villiform teeth extending onto lateral surface, adjacent part of lip poorly developed in large specimens. Vomerine teeth present. Maxilla covered with small deciduous scales. Pectoral filaments 9. Lateral line unbranched, extending to upper end of caudal fin lobe. Swim bladder absent (Ref. 45049).

Ease of Identification

Meristic characteristics of Polydactylus opercularis

Lateral Lines Interrupted: No
Scales on lateral line
Pored lateral line scales 66 - 74
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 24 - 24
Vertebrae
preanal
total

Fins

Dorsal fin(s)

Attributes
Fins number 2
Finlets No. Dorsal   
Ventral  
Spines total 9 - 9
Soft-rays total 11 - 13
Adipose fin

Caudal fin

Attributes forked; more or less normal

Anal fin(s)

Fins number 1
Spines total 3 - 3
Soft-rays total 12 - 14

Paired fins

Pectoral Attributes  other (see remarks)
Spines     0
Soft-rays   14 - 16
Pelvics Attributes  
Position    
Spines     1
Soft-rays   5 - 5
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