Morphology Data of Gymnothorax fimbriatus
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 eel-like
Cross section oval
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

Adults pale with small black spots on face; black spots proportionally much larger in young (Ref. 30404).

Description: Characterized by generally pale tan or greyish brown color; frequently with yellow hue on head; highly variable pattern of widely spaced, irregular dark brown to black spots and partial bars on body and fins; body depth at gill opening 14-18 in TL; high dorsal fin; dorsal fin origin slightly anterior to gill opening; anus slightly anterior to middle of body; narrow jaws, lower slightly curved; front jaw teeth in single row; anterior canines of upper jaw alternating with small pointed teeth; short inner row of canines at side of upper jaw; two pairs of elongate canines anteriorly in lower jaw (Ref. 90102). Predrosal vertebrae 4-5 (Ref. 92337).

Ease of Identification

Meristic characteristics of Gymnothorax fimbriatus

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
Gill clefts (sharks/rays only)
Gill rakers
on lower limb
on upper limb
preanal 51 - 56
total 128 - 142


Dorsal fin(s)

Fins number
Finlets No. Dorsal   
Spines total
Soft-rays total
Adipose fin

Caudal fin


Anal fin(s)

Fins number
Spines total
Soft-rays total

Paired fins

Pectoral Attributes  
Pelvics Attributes  
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
Entered by Reyes, Rodolfo B.
Modified by Torres, Armi G.
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