Morphology Data of Trimma trioculatum
Identification keys
Main Ref. Winterbottom, R., M.V. Erdmann and N.K.D. Cahyani, 2015
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
Cross section oval
Dorsal head profile
Type of eyes
Type of mouth/snout
Position of mouth
Type of scales

This species is distinguished by the following characters: first dorsal fin with a large (slightly greater than pupil diameter in width) round, black, ocellated spot in between spines 1 and 5; a second, much smaller black or dark red spot just posterior to the spine of the second dorsal fin and above the basal stripe; body yellow with a dark purplish or gray head with two distinct red bars across the cheek; without round spots of any colour on the nape, opercle or cheek; upper pectoral fin base with a small dark (preserved) or white (alive) spot; a narrow bony interorbital (<70% pupil diameter); first dorsal fin without elongated spines; pectoral fin rays 15-16, with the middle 4-8 rays branched; fifth pelvic fin ray with a single dichotomous branch; total gill rakers on the first gill arch 16-17 (Ref. 102609).

Ease of Identification

Meristic characteristics of Trimma trioculatum

Lateral Lines Interrupted: No
Scales on lateral line 23 - 23
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
total 16 - 17


Dorsal fin(s)

Fins number 2
Finlets No. Dorsal   
Spines total 7 - 7
Soft-rays total 8 - 9
Adipose fin

Caudal fin


Anal fin(s)

Fins number
Spines total 1 - 1
Soft-rays total 8 - 8

Paired fins

Pectoral Attributes  
Soft-rays   15 - 16
Pelvics Attributes  
Spines     1
Soft-rays   5 - 5
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