Morphology Data of Siganus niger
Identification keys
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 striking type of mouth
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
Diagnosis

Fish looks black apart from the bright yellow pectoral fins; `vertical' margin of soft portion of dorsal fin and trailing edge of caudal fin orange. Preopercular angle 110°-111°; strong overlapping scales cover cheeks; 8-12 rows deep below center of orbit. Fully scaled midline of thorax. A very short tube, slightly taller posteriorly supports the anterior nostril opening. Caudal fin slightly incised.

Ease of Identification

Meristic characteristics of Siganus niger

Lateral Lines 1 Interrupted: No
Scales on lateral line 146 - 153
Pored lateral line scales
Scales in lateral series
Scale rows above lateral line 18 - 18
Scale rows below lateral line
Scales around caudal peduncle
Barbels 0
Gill clefts (sharks/rays only)
Gill rakers
on lower limb 17 - 17
on upper limb 4 - 4
total 21 - 21
Vertebrae
preanal 10 - 10
total 23 - 23

Fins

Dorsal fin(s)

Attributes extending over most of the back length
Fins number 1
Finlets No. Dorsal   
Ventral  
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   12 - 12
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 )
Entered by Capuli, Estelita Emily
Modified by Reyes, Rodolfo B.
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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