Morphology Data of Pomacanthus semicirculatus
Identification keys
Abnormalities
Main Ref. Myers, R.F., 1991
Appearance refers to
Bones in OsteoBase

Sex attributes

Specialized organs
Different appearance
Different colors different colors in juveniles and adults
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 superior
Type of scales ctenoid scales
Diagnosis

Description: Juveniles of this species are bluish black with concentric white semi-circles. Adults brownish on anterior and posterior third of the body; middle portion greenish or yellowish; numerous blue spots on the sides; posterior part of dorsal and anal fins prolonged as a filament, the tips bright yellow. Transformation to the adult color pattern occurs over the size range of about 8 - 16 cm (Ref. 1602). Body depth 1.6-1.9 in SL. Scales longitudinal series 65-70 (Ref. 90102).

Ease of Identification

Meristic characteristics of Pomacanthus semicirculatus

Lateral Lines 1 Interrupted: No
Scales on lateral line 65 - 70
Pored lateral line scales
Scales in lateral series
Scale rows above lateral line
Scale rows below lateral line
Scales around caudal peduncle
Barbels 0
Gill clefts (sharks/rays only)
Gill rakers
on lower limb 12 - 13
on upper limb 4 - 5
total 16 - 18
Vertebrae
preanal
total

Fins

Dorsal fin(s)

Attributes no striking attributes
Fins number 1
Finlets No. Dorsal   0 - 0
Ventral  0 - 0
Spines total 13 - 13
Soft-rays total 20 - 23
Adipose fin absent

Caudal fin

Attributes forked; more or less normal

Anal fin(s)

Fins number 1
Spines total 3 - 3
Soft-rays total 18 - 22

Paired fins

Pectoral Attributes  more or less normal
Spines     0
Soft-rays   19 - 21
Pelvics Attributes  more or less normal
Position    thoracic  beneath origin of D1
Spines     0
Soft-rays   
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
Entered by Reyes, Rodolfo B.
Modified by Olisa, Kristine Elaine Paz
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