Morphology Data of Hypseleotris gymnocephala
Identification keys
Abnormalities
Main Ref. Thacker, C.E., D.L. Geiger and P.J. Unmack, 2022
Appearance refers to
Bones in OsteoBase

Sex attributes

Specialized organs
Different appearance
Different colors
Remarks

Descriptive characteristics of juvenile and adult

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

This species is distinguished from other southeastern Hypseleotris by the following set of characters: blunt head and lack of dorsal scales up until posteriad as middle of second dorsal fin; absence of pointed median fin tips (present in H. acropinna, H. galii, H. mooloboolaensis); and distinct median fin coloration in mature males: distal portion of fin bearing band of pale orange, shading into thin band of white (Ref. 128732).

Ease of Identification

Meristic characteristics of Hypseleotris gymnocephala

Lateral Lines Interrupted: No
Scales on lateral line 28 - 35
Pored lateral line scales
Scales in lateral series
Scale rows above lateral line
Scale rows below lateral line
Scales around caudal peduncle
Barbels
Gill clefts (sharks/rays only)
Gill rakers
on lower limb
on upper limb
total
Vertebrae
preanal
total 30 - 31

Fins

Dorsal fin(s)

Attributes
Fins number 2
Finlets No. Dorsal   
Ventral  
Spines total 8 - 9
Soft-rays total 11 - 12
Adipose fin

Caudal fin

Attributes

Anal fin(s)

Fins number 1
Spines total 1 - 1
Soft-rays total 11 - 12

Paired fins

Pectoral Attributes  
Spines     
Soft-rays   15 - 16
Pelvics Attributes  
Position    
Spines     
Soft-rays   
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