Morphology Data of Trimma bisella
Identification keys
Main Ref. Winterbottom, R., 2000
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 fusiform / normal
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: colour pattern distinguishes this species where freshly collected specimens have a brown-grey body; a bright red peduncle margined dorsally and ventrally by two large white saddles; vertical orange bars 4 on a salmon background on the head; midline of nape naked; interorbital trench well developed, second dorsal spine elongated, fifth pelvic fin ray unbranched; when preserved, the two light saddles on the caudal peduncle and the light vertical bars on the head visible; without scales in the predorsal midline or on cheek (Ref. 118045).

Ease of Identification

Meristic characteristics of Trimma bisella

Lateral Lines Interrupted: No
Scales on lateral line 24 - 26
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 14 - 15
on upper limb 3 - 5
total 17 - 19


Dorsal fin(s)

Fins number 2
Finlets No. Dorsal   
Spines total 7 - 7
Soft-rays total 9 - 10
Adipose fin

Caudal fin


Anal fin(s)

Fins number 1
Spines total 1 - 1
Soft-rays total 8 - 9

Paired fins

Pectoral Attributes  
Soft-rays   16 - 19
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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