Morphology Summary - Obliquogobius yamadai
Morphology Data of Obliquogobius yamadai
Bestimmungsschlüssel
Abnormalities
Main Ref. Shibukawa, K. and Y. Aonuma, 2007
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
Dorsal head profile
Type of eyes
Type of mouth/snout
Position of mouth
Type of scales
Diagnose

This species is distinct from its congeners in having the following characters: second dorsal-fin rays I, 9-10 (almost always I, 9); anal-fin rays I, 9-10 (almost always I, 9); scaled cheek and pectoral-fin base; asymmetrical caudal fin, with fifth or sixth segmented ray slightly elongate and longest; head length (HL), 28.8-33.5% of SL; eye diameter 32.7-37.3% HL, 9.6-12.3% of SL; grayish body with about 7 narrow, transverse yellow bars (pale in preservation); absence of distinct black-and-white barred pattern on caudal fin (Ref. 75138).

Ease of Identification

Meristic characteristics of Obliquogobius yamadai

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 12 - 12
Barbels
Gill clefts (sharks/rays only)
Gill rakers
on lower limb 10 - 12
on upper limb 2 - 3
insgesamt
Wirbelzahl
preanal 10 - 10
insgesamt 26 - 26

Fins

Dorsal fin(s)

Attributes
Fins number 2
Finlets No. Dorsal   
Ventral  
Spines total 7 - 7
Soft-rays total 9 - 9
Adipose fin

Caudal fin  (shape guide)

Attributes

Anal fin(s)

Fins number 1
Spines total 1 - 1
Soft-rays total 9 - 9

Paired fins

Pectoral Attributes  
Spines     0
Soft-rays   21 - 23
Pelvics Attributes  
Position    
Spines     1
Soft-rays   5 - 5
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