Morphology Data of Ptereleotris heteroptera
Identification keys
Abnormalities
Main Ref. Randall, J.E. and D.F. Hoese, 1985
Appearance refers to Male; Female
Bones in OsteoBase

Sex attributes

Specialized organs protruding genital papilla (m)
Different appearance always different morphology between mature adults
Different colors
Remarks Genital papilla in males is pointed and smooth whereas in females, it is rounded and spongy (Ref. 528).

Descriptive characteristics of juvenile and adult

Striking features
Body shape lateral elongated
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 superior
Type of scales cycloid scales
Diagnosis

Light blue to pale bluish gray; upper edge of operculum with a longitudinal iridescent blue band divided into 2 sections. Caudal fin yellowish, some with an orangish streak passing anteriorly from spot; 1st dorsal fin not as high as the 2nd; 2nd dorsal and anal fins not elevated anteriorly; pelvic fins not long; base of pectoral fin usually with a blue-edged salmon-pink spot.

Ease of Identification

Meristic characteristics of Ptereleotris heteroptera

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 17 - 20
on upper limb 5 - 6
total 22 - 26
Vertebrae
preanal 10 - 10
total 26 - 26

Fins

Dorsal fin(s)

Attributes other
Fins number 2
Finlets No. Dorsal   
Ventral  
Spines total 7 - 7
Soft-rays total 29 - 33
Adipose fin absent

Caudal fin

Attributes more or less truncate; more or less normal

Anal fin(s)

Fins number 1
Spines total 1 - 1
Soft-rays total 27 - 30

Paired fins

Pectoral Attributes  more or less normal
Spines     0
Soft-rays   21 - 24
Pelvics Attributes  more or less normal
Position    thoracic  before origin of D1
Spines     1
Soft-rays   4 - 4
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
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