Morphology Data of Trimma agrena
Identification keys
Abnormalities
Main Ref. Winterbottom, R. and I.-S. Chen, 2004
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 fusiform / normal
Cross section compressed
Dorsal head profile
Type of eyes
Type of mouth/snout
Position of mouth
Type of scales
Diagnosis

Distinguished by the combination of the following features: no predorsal scales anterior extension of body scales along the side of the nape from half-way between the eye and the shoulder spot in juveniles to just behind the eye in adults; body light brown with orange spots or stripes on the head, a dark greyish orange shoulder spot above pectoral fin base, and scale pockets strongly outlined with dark brown chromatophores with an orange spot at the junction between adjacent pockets in the same longitudinal row (Ref. 51083).

Description: Characterized further by the longitudinal scale series 23-24; cheeks and opercle without scales; depth of body about 3.5 in SL (Ref. 90102).

Ease of Identification

Meristic characteristics of Trimma agrena

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

Fins

Dorsal fin(s)

Attributes
Fins number 2
Finlets No. Dorsal   
Ventral  
Spines total 6 - 7
Soft-rays total 8 - 10
Adipose fin

Caudal fin

Attributes

Anal fin(s)

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

Paired fins

Pectoral Attributes  
Spines     
Soft-rays   17 - 19
Pelvics Attributes  
Position    
Spines     
Soft-rays   
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
Comments & Corrections
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