Morphology Data of Gerres filamentosus
Identification keys
Main Ref. Myers, R.F., 1991
Appearance refers to
Bones in OsteoBase

Sex attributes

Specialized organs
Different appearance
Different colors

Descriptive characteristics of juvenile and adult

Striking features none
Body shape lateral fusiform / normal
Cross section compressed
Dorsal head profile more or less straight
Type of eyes more or less normal
Type of mouth/snout more or less normal
Position of mouth terminal
Type of scales cycloid scales

Description: Body silvery with 7-10 and oval black spots in vertical series on upper half side. caudal fin large and forked deeply. Maxillary reaches beyond level of eye anterior edge. Body depth max 2.0-2.5 in SL. Scales above LL to middle dorsal spines 4.5-5.5. Dorsal fin 2nd spine filamentous and very long, 1.7-2.0 in SL; pectoral fins reaches beyond level of anal fin origin; caudal fin large and forked deeply. (Ref. 4967, 48635, 90102)

Ease of Identification

Meristic characteristics of Gerres filamentosus

Lateral Lines 1 Interrupted: No
Scales on lateral line 43 - 46
Pored lateral line scales 42 - 47
Scales in lateral series
Scale rows above lateral line 4.5 - 5.5
Scale rows below lateral line
Scales around caudal peduncle
Barbels 0
Gill clefts (sharks/rays only)
Gill rakers
on lower limb 8 - 9
on upper limb 5 - 6
total 13 - 15


Dorsal fin(s)

Attributes other
Fins number 1notched No
Finlets No. Dorsal   0 - 0
Ventral  0 - 0
Spines total 9 - 9
Soft-rays total 10 - 11
Adipose fin absent

Caudal fin

Attributes forked; more or less normal

Anal fin(s)

Fins number 1
Spines total 2 - 3
Soft-rays total 7 - 8

Paired fins

Pectoral Attributes  more or less normal
Spines     0
Soft-rays   17 - 17
Pelvics Attributes  more or less normal
Position    thoracic  before origin of D1
Spines     1
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
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