Morphology Data of Tylosurus gavialoides
Identification keys
Abnormalities
Main Ref. Kuiter, R.H., 1993
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

Body and caudal peduncle are sub-cylindrical and covered with minute, somewhat deciduous scales; lateral-line low on the body; both jaws greatly produced with an inner row of short strong teeth, reduced in the outer row; dorsal and anal fins posterior on body with dorsal origin slightly anterior to anal fin origin, and both fins are elevated anteriorly; ventral fins abdominal, placed posteriorly, with distance from anal fin less than the fin base length; truncated caudal fin, with center slightly emarginated in adults; silvery on the sides and greenish above; in adults, with snout and fins dusky (Ref. 9002).

Ease of Identification

Meristic characteristics of Tylosurus gavialoides

Lateral Lines Interrupted: No
Scales on lateral line 400 - 400
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 20 - 22
Adipose fin

Caudal fin

Attributes

Anal fin(s)

Fins number
Spines total
Soft-rays total 18 - 23

Paired fins

Pectoral Attributes  
Spines     
Soft-rays   14 - 16
Pelvics Attributes  
Position    
Spines     
Soft-rays   6 - 6
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