Morphology Data of Idiastion pacificum
Identification keys
Abnormalities
Main Ref. Okamoto, M., H. Motomura, K. Hoshino, T. Yanagimoto and T. Saruwatari, 2012
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
Dorsal head profile
Type of eyes
Type of mouth/snout
Position of mouth
Type of scales
Diagnosis

This species is distinguished by the following set of characters: 9 dorsal-fin rays 9; 17-19 pectoral-

fin rays; ctenoid scales in interorbital space and cycloid scales on belly; origin of the first dorsal-fin spine is slightly posterior to a vertical drawn through supracleithral spine base; posterior tip of pectoral fin do not reach the anal-fin origin; head length 44.4-46.0% SL (Ref. 91153).

Ease of Identification

Meristic characteristics of Idiastion pacificum

Lateral Lines Interrupted: No
Scales on lateral line
Pored lateral line scales 24 - 26
Scales in lateral series
Scale rows above lateral line 8 - 8
Scale rows below lateral line 11 - 12
Scales around caudal peduncle
Barbels
Gill clefts (sharks/rays only)
Gill rakers
on lower limb 12 - 12
on upper limb 6 - 6
total 18 - 18
Vertebrae
preanal
total 25 - 25

Fins

Dorsal fin(s)

Attributes
Fins number 1
Finlets No. Dorsal   
Ventral  
Spines total 7 - 7
Soft-rays total 9 - 9
Adipose fin

Caudal fin

Attributes

Anal fin(s)

Fins number 1
Spines total 3 - 3
Soft-rays total 5 - 5

Paired fins

Pectoral Attributes  
Spines     
Soft-rays   
Pelvics Attributes  
Position    
Spines     
Soft-rays   
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
Entered by Capuli, Estelita Emily
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