Morphology Summary - Rhinogobius sexistriatus
Morphology Data of Rhinogobius sexistriatus
Identification keys
Abnormalities
Main Ref. Chen, I.-S. and S.-C. Wang, 2025
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  (shape guide) elongated
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 its congeners by the following set of characters: second dorsal fin rays I/8; anal fin rays I/7; pectoral fin rays 17; longitudinal scale series 26-28 (modally 27); predorsal scales 4-5 (modally 5); vertebral count 27; cheek with six parallel black stripes on lower side in male; branchiostegal membrane light blue and spotless in male; first dorsal fin bright orange on more than 1/2 dorsal region in male; second dorsal fin brownish yellow with 3 longitudinal rows of brown spots and a distal yellow margin in male; pectoral fin base greyish with a large, wide oblique black mark and an orange spot behind in male; and caudal fin greyish with 5 vertical rows of brown spots in male (Ref. 138525).

Ease of Identification

Meristic characteristics of Rhinogobius sexistriatus

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
Gill clefts (sharks/rays only)
Gill rakers
on lower limb
on upper limb
total
Vertebrae
preanal
total 27 - 27

Fins

Dorsal fin(s)

Attributes
Fins number 2
Finlets No. Dorsal   
Ventral  
Spines total 7 - 7
Soft-rays total 8 - 8
Adipose fin absent

Caudal fin  (shape guide)

Attributes

Anal fin(s)

Fins number 1
Spines total 1 - 1
Soft-rays total 7 - 7

Paired fins

Pectoral Attributes  
Spines     
Soft-rays   17 - 17
Pelvics Attributes  
Position    
Spines     1
Soft-rays   5 - 5
(e.g. 9948)
(e.g. oophagy)
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