Morphology Data of Plectranthias polygonius
Identification keys
Abnormalities
Main Ref. Shepherd, B., T.A.Y. Phelps, H.T. Pinheiro, C.R. Rocha and L.A. Rocha, 2020
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
Cross section compressed
Dorsal head profile
Type of eyes
Type of mouth/snout
Position of mouth
Type of scales
Diagnosis

This species is distinguished from its congeners by the following set of characters: : colouration when alive, in particular the two rows of orange rhomboid-shaped polygons on the lateral part of the body and an elongated yellow and white third dorsal spine; D X,16; pectoral-fin rays 14, all unbranched; vertebrae 10 + 16; continuous lateral line with 27-30 tubed scales; circumpeduncular scales 10-11; preopercle without antrorse spines (Ref. 122130).

Ease of Identification

Meristic characteristics of Plectranthias polygonius

Lateral Lines Interrupted: No
Scales on lateral line
Pored lateral line scales 27 - 30
Scales in lateral series
Scale rows above lateral line 2
Scale rows below lateral line 9
Scales around caudal peduncle 10
Barbels
Gill clefts (sharks/rays only)
Gill rakers
on lower limb
on upper limb
total
Vertebrae
preanal 10
total 26

Fins

Dorsal fin(s)

Attributes
Fins number 2
Finlets No. Dorsal   
Ventral  
Spines total 10
Soft-rays total 16
Adipose fin

Caudal fin

Attributes

Anal fin(s)

Fins number
Spines total 3
Soft-rays total 7

Paired fins

Pectoral Attributes  
Spines     
Soft-rays   14 - 14
Pelvics Attributes  
Position    
Spines     1
Soft-rays   5
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
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