Morphology Data of Gerres nigri
Identification keys
Abnormalities
Main Ref. Bauchot, M.-L., 2003
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

Diagnosis: body oblong and compressed; snout pointed, shorter than eye diameter; mouth strongly protrusible; nostrils contiguous, situated at midpoint between eye and snout tip; dorsal fin deeply notched; pectoral fins long, reaching to, or extending beyond anal-fin origin; large cycloid scales; scales of the interocular space not reaching anterior border of eyes; spinous part of dorsal fin greyish, without a black spot at tip (Ref. 57394).

Coloration: back olivaceous-brown, sides silvery, with longitudinal dark bands; young individuals with narrow, dark vertical bars on sides; spinous part of dorsal fin distally greyish, but without a distinct black spot at tip; juveniles with 2 longitudinal series of dark spots on dorsal fin (Ref. 57394).

Ease of Identification

Meristic characteristics of Gerres nigri

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 0
Gill clefts (sharks/rays only)
Gill rakers
on lower limb
on upper limb
total
Vertebrae
preanal
total

Fins

Dorsal fin(s)

Attributes no striking attributes
Fins number 1
Finlets No. Dorsal   0
Ventral  0
Spines total 9 - 9
Soft-rays total 10 - 10
Adipose fin absent

Caudal fin

Attributes forked; more or less normal

Anal fin(s)

Fins number 1
Spines total 3 - 3
Soft-rays total 8 - 8

Paired fins

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