Morphology Data of Gymnochanda ploegi
Identification keys
Main Ref. Tan, H.H. and K.K.P. Lim, 2014
Appearance refers to
Bones in OsteoBase

Sex attributes

Specialized organs
Different appearance always different morphology between mature adults
Different colors always different colors between mature adults

Descriptive characteristics of juvenile and adult

Striking features
Body shape lateral fusiform / normal
Cross section
Dorsal head profile
Type of eyes
Type of mouth/snout
Position of mouth terminal
Type of scales scales embedded or partly/completely absent

Distinguished from all other species of Gymnochanda by the following characters: mature males have pinkish body with dorsal half suffused with reddish pigments, anal and second dorsal fins expanded with their soft rays also expanded to reach 2/3 of caudal fin forming a crescentic profile, without any individual fin ray free from the interradial fin membrane; anterior part to whole of both anal and second dorsal fins maroon red in life, with posterior portion of distal rays black forming a crescentic pattern (hyaline when preserved); caudal fin entirely lightly suffused with red in life (hyaline when preserved); females possess yellowish body suffused with reddish pigments without any fin elongation (hyaline when preserved), both dorsal fins suffused with reddish pigments (hyaline when preserved) (Ref. 97398).

Ease of Identification

Meristic characteristics of Gymnochanda ploegi

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 12 - 12
on upper limb
total 25 - 25


Dorsal fin(s)

Fins number
Finlets No. Dorsal   
Spines total 8 - 8
Soft-rays total 11 - 11
Adipose fin absent

Caudal fin

Attributes forked

Anal fin(s)

Fins number
Spines total 3 - 3
Soft-rays total 11 - 11

Paired fins

Pectoral Attributes  more or less normal
Soft-rays   12 - 12
Pelvics Attributes  more or less normal
Position    thoracic  before origin of D1
Spines     1
Soft-rays   5 - 5
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
Entered by Torres, Armi G.
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