Morphology Data of Chromis yamakawai
Identification keys
Abnormalities
Main Ref. Iwatsubo, H. and H. Motomura, 2013
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 short and / or deep
Cross section compressed
Dorsal head profile
Type of eyes
Type of mouth/snout
Position of mouth
Type of scales
Diagnosis

This species is distinguished by the following characters: D XIII-XIV,11-13 (mode XIII, 12); A II,10-12 (11); pectoral fin rays 17-21 (19); principal caudal fin rays 15; spiniform caudal fin rays 2; scale rows in longitudinal series 21-27 (26); tubed scales in lateral line 16-21 (19); scale rows above lateral line 3, below lateral line 9-10 (9); gill rakers 6-9 (7) + 20-25 (23) = 27-33 (30); smooth preopercular margin; caudal fin is deeply forked and without prolonged filaments; basal width of the pelvic fin axillary scale 1.7-2.8% of SL; basal width of scale between the pelvic fin bases is 2.2-3.9% of SL; distinct black blotch covering the upper two-thirds of pectoral fin base in juveniles and covering entire fin base in adults; absence of white spot at the end of dorsal fin base; no distinct markings on caudal peduncle; colour of caudal fin yellowish without dark band along each fin lobe (Ref. 94774).

Ease of Identification

Meristic characteristics of Chromis yamakawai

Lateral Lines Interrupted: No
Scales on lateral line
Pored lateral line scales 16 - 21
Scales in lateral series
Scale rows above lateral line 3 - 3
Scale rows below lateral line 9 - 10
Scales around caudal peduncle
Barbels
Gill clefts (sharks/rays only)
Gill rakers
on lower limb 20 - 25
on upper limb 6 - 9
total 27 - 33
Vertebrae
preanal
total

Fins

Dorsal fin(s)

Attributes
Fins number 1
Finlets No. Dorsal   
Ventral  
Spines total 13 - 14
Soft-rays total 11 - 13
Adipose fin

Caudal fin

Attributes

Anal fin(s)

Fins number 1
Spines total 2 - 2
Soft-rays total 10 - 12

Paired fins

Pectoral Attributes  
Spines     
Soft-rays   17 - 21
Pelvics Attributes  
Position    
Spines     
Soft-rays   
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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