Morphology Data of Melanotaenia longispina
Identification keys
Abnormalities
Main Ref. Nugraha, M.F.I., Kadarusman, N. Hubert, J.C. Avarre, R.K. Hadiaty, J. Slembrouck, O. Carman, Sudarto, R. Ogistira and L. Pouyaud, 2015
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 compressed
Dorsal head profile
Type of eyes
Type of mouth/snout
Position of mouth
Type of scales
Diagnosis

This species is distinguished from its congeners in the Birds Head region by the following characters: D IV-VI+I, 13-14; A I, 23-26; 37-40 lateral scales; 10 transverse scales; 19-21 anterior scales; 17-18 cheek scales; 19 gillrakers on first arch; short head length, 24.1-25.2% of SL; thin interorbital width, 7.8-8.2% of SL; long predorsal length, 50.2-51.8% of SL; long pelvic fin length, 19.6-20.4% of SL; long spine length on first dorsal fin, 13.1-15.3% of SL; moderately elongate second dorsal fin spine, 12.4-15.7% of SL; elongate anal fin spine, 10.1-11.3% of SL; short dorsal fin base, 33.4-36.5% of SL; short 2nd dorsal fin base, 20.2-22.6% of SL; dorsal fin base protruding vertically behind anal origin, between 1st and 3rd anal soft ray; absence of stripes on dorsal fins margin (Ref. 103156).

Ease of Identification

Meristic characteristics of Melanotaenia longispina

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

Fins

Dorsal fin(s)

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

Caudal fin

Attributes

Anal fin(s)

Fins number
Spines total
Soft-rays total

Paired fins

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