Morphology Data of Canthigaster axiologus
Identification keys
Main Ref. Randall, J.E., J.T. Williams and L.A. Rocha, 2008
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 short and / or deep
Cross section
Dorsal head profile
Type of eyes
Type of mouth/snout
Position of mouth
Type of scales

This species is distinguished by the following characters: D 9-11 (usually 10, rarely 11); A 9-10 (usually 9); pectoral rays 15-18 (modally 16 in the North Pacific and 17 in the South Pacific); gill rakers 7-9; body depth between origins of dorsal and anal fins 3.0-3.3 in SL; head length (HL) 2.3-2.5 in SL; interorbital width 3.75-4.4 in HL; gill opening 4.8-5.55 in HL; origin of anal fin below or posterior to rear base of dorsal fin, the preanal length 1.25-1.35 in SL; longest dorsal ray 2.4-2.9 in HL; preserved colour pale grey to pale tan with 3 saddle-like, dark brown bars on body, similar to C. coronata, the edges of bars with close-set, small, pale-edged dark spots or short lines, irregularly alternating with unpigmented pale spots or lines; ventral part of body with or without small pale spots or pale-edged dark spots; across posterior interorbital and anterior occiput is a broad dark brown band; below base of pectoral fin is a dark brown spot; from chin to below gill opening, a narrow curved pale band edged in small dark spots; around eye is a pale area with radiating dark brown lines (except adjacent interorbital band); on head and abdomen is a midventral dark brown line varying from faint to conspicuous; lips pale, usually rimmed by a dusky band; fins pale grey, the upper and lower edges of caudal fin with or without a broad dark marginal band (Ref. 83660).

Ease of Identification

Meristic characteristics of Canthigaster axiologus

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
Gill clefts (sharks/rays only)
Gill rakers
on lower limb
on upper limb


Dorsal fin(s)

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

Caudal fin


Anal fin(s)

Fins number
Spines total
Soft-rays total 9 - 10

Paired fins

Pectoral Attributes  
Soft-rays   15 - 18
Pelvics Attributes  
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
Entered by Capuli, Estelita Emily
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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