Morphology Data of Forsterygion flavonigrum
Identification keys
Main Ref. Jawad, L.A., 2008
Appearance refers to
Bones in OsteoBase

Sex attributes

Specialized organs
Different appearance
Different colors

Descriptive characteristics of juvenile and adult

Striking features
Body shape lateral
Cross section
Dorsal head profile
Type of eyes
Type of mouth/snout
Position of mouth
Type of scales

Short denticles present on inter-radial circuli. Pterygiophore supporting first segmented ray of third dorsal fin anterior to neural spine of 25th vertebra. Dorsal fin formula V-0N-0-1-0-

1. Nine procurrent rays in upper caudal lobe, 8 in lower lobe; in upper lobe 1 ray between upper lobe and posterior epural, 5 rays opposite epurals, 3 rays anterior to anterior epural; in lower lobe, 1 ray between lower lobe and haemal spine of second preural vertebra, 6 rays opposite haemal spine of third preural vertebra, 1 ray anterior to haemal spine of third preural vertebra. Front of body white with black eyes, black stripe extending to below base of second dorsal fin, rear part of body white or yellow; body yellow with black head in breeding males, females and non-breeding males white anteriorly, white or yellow posteriorly, with black stripe along lateral line, only reaching to mid-body (Ref. 84085).

Ease of Identification

Meristic characteristics of Forsterygion flavonigrum

Lateral Lines Interrupted: No
Scales on lateral line
Pored lateral line scales 14 - 23
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
total 39 - 46


Dorsal fin(s)

Fins number 3
Finlets No. Dorsal   
Spines total 23 - 27
Soft-rays total 12 - 15
Adipose fin

Caudal fin

Attributes more or less truncate; more or less normal

Anal fin(s)

Fins number 1
Spines total 2 - 2
Soft-rays total 25 - 30

Paired fins

Pectoral Attributes  more or less normal
Soft-rays   16 - 19
Pelvics Attributes  rays very elongated
Position    jugular
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
Entered by Hilomen, Teresa
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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