Morphology Data of Siganus trispilos
Identification keys
Abnormalities
Main Ref. Woodland, D.J., 1990
Appearance refers to Male; Female
Bones in OsteoBase

Sex attributes

Specialized organs
Different appearance
Different colors
Remarks

Descriptive characteristics of juvenile and adult

Striking features none
Body shape lateral short and / or deep
Cross section compressed
Dorsal head profile clearly concave
Type of eyes more or less normal
Type of mouth/snout more or less normal
Position of mouth terminal
Type of scales cycloid scales
Diagnosis

Sides of body and fins bright yellow with orange cast; 3 chocolate brown patches on upper half of body below spinous part of dorsal fin; head, thorax, ventral margin of body, upper half of sides, and caudal peduncle with blue pinhead-sized ocelli, with deep blue margin; ocelli also present within the 3 patches; fins may be invaded basally by blue ocelli. Brown smudge running diagonally through eye; yellow lips; dusky yellow iris. Fin and nape spines fairly stout, pungent, and venomous. Midline of thorax and pelvic ridges fully scaled.

Ease of Identification

Meristic characteristics of Siganus trispilos

Lateral Lines 1 Interrupted: No
Scales on lateral line
Pored lateral line scales
Scales in lateral series
Scale rows above lateral line 21 - 24
Scale rows below lateral line
Scales around caudal peduncle
Barbels 0
Gill clefts (sharks/rays only)
Gill rakers
on lower limb 16 - 19
on upper limb 4 - 5
total 20 - 24
Vertebrae
preanal 10 - 10
total 13 - 13

Fins

Dorsal fin(s)

Attributes extending over most of the back length
Fins number 1
Finlets No. Dorsal   0 - 0
Ventral  0 - 0
Spines total 13 - 13
Soft-rays total 10 - 10
Adipose fin absent

Caudal fin

Attributes forked; more or less normal

Anal fin(s)

Fins number 1
Spines total 7 - 7
Soft-rays total 9 - 9

Paired fins

Pectoral Attributes  more or less normal
Spines     0
Soft-rays   17 - 17
Pelvics Attributes  more or less normal
Position    thoracic  behind origin of D1
Spines     2
Soft-rays   3 - 3
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
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