Morphology Data of Hypseleotris acropinna
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 can be distinguished among southeastern Hypseleotris (except H. galii and H. moolooboolaensis) by adult males having elongated rays in posterior portions of the 2nd dorsal, and anal fins with fin tips extending along length of caudal peduncle. Differs from H. galii by lacking the dark spot ventrally surrounding the genital papillae in females. Also differs from H. moolooboolaensis in the Mary River by the following set of characters: D VI-VII (vs. VII-VIII), dorsal rays 10-11 (vs. 11-12), and lateral scales 31-33 (vs. 33-34).

Ease of Identification

Meristic characteristics of Hypseleotris acropinna

Lateral Lines Interrupted: No
Scales on lateral line 31 - 34
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 29 - 30

Fins

Dorsal fin(s)

Attributes
Fins number 2
Finlets No. Dorsal   
Ventral  
Spines total 7 - 8
Soft-rays total 10 - 11
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   13 - 15
Pelvics Attributes  
Position    
Spines     
Soft-rays   
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