Morphology Data of Cocotropus izuensis
Identification keys
Abnormalities
Main Ref. Imamura, H., M. Aizawa and G. Shinohara, 2010
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 characters: D XII spines; segmented lower caudal-fin rays 7; vertebrae 26; preopercular spines 5; upper jaw length equal to or a little shorter than lachrymal length; absence of distinct fleshy papillae on posterior portion of upper jaw; vomerine teeth absent; first lower jaw sensory pores on both sides fused; anterior position of isthmus well beyond fifth lower jaw sensory pore; 4 dorsal-fin spines anterior to third neural spine; interneural space between seventh and eighth neural spines with no dorsal-fin spine proximal pterygiophores (Ref. 83999).

Ease of Identification

Meristic characteristics of Cocotropus izuensis

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
Gill clefts (sharks/rays only)
Gill rakers
on lower limb
on upper limb
total
Vertebrae
preanal
total 26 - 26

Fins

Dorsal fin(s)

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

Caudal fin

Attributes

Anal fin(s)

Fins number
Spines total 2 - 2
Soft-rays total 6 - 8

Paired fins

Pectoral Attributes  
Spines     
Soft-rays   12 - 13
Pelvics Attributes  
Position    
Spines     1
Soft-rays   3 - 3
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