Morphology Summary - Rhinogobius macromaculatus
Morphology Data of Rhinogobius macromaculatus
Identification keys
Abnormalities
Main Ref. Chen, I-S and M.-F. Yeh, 2024
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)
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: D2 modally I,8; A I,7; pectoral fin rays modally 15; longitudinal scale series 27-28 (modally 28); perdorsal scales usually 14-15; scales between the first dorsal fin origin to upper pectoral fin base modally 8; vertebrae 27; males with rear edge of mouth merely extending to vertical of anterior margin of pupil. Colouration: male with lateral body with 7-8 longitudinal rows of bright orange to orange red spots about 1/2 to 1/3 of pupil diameter; female with orange brown spots less than 1/3 of pupil diameter; male with cheek and opercle with moderately large 32-36 orange spots while the female with small brown spots 12-16; larger cheek spot about 1/5 of pupil diameter; male with branchostegal membrane with 20-24 small reddish orange spots on either side, but spotless in female; with a large, middle black spot in front of third spine of first dorsal fin, its height 1/2 of second spine; male with basal region of first dorsal fin with 7-8 orange or brownish orange spots, and the second dorsal fin with 2-3 longitudinal rows of orange spots; male with pectoral fin with two rows usually 3+4 (totally 7-8 spots) of orange to reddish orange spots (Ref. 133058).

Ease of Identification

Meristic characteristics of Rhinogobius macromaculatus

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 10 - 10
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

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     0
Soft-rays   14 - 15
Pelvics Attributes  
Position    
Spines     1
Soft-rays   5 - 5
(e.g. 9948)
(e.g. oophagy)
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cfm script by eagbayani, 17.10.00, php script by rolavides, 13/03/08 ,  last modified by sortiz, 06.27.17