Morphology Data of Psilorhynchus amplicephalus
Identification keys
Abnormalities
Main Ref. Arunachalam, M., M. Muralidharan and P. Sivakumar, 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 elongated
Cross section
Dorsal head profile
Type of eyes
Type of mouth/snout
Position of mouth
Type of scales
Diagnosis

Body spindle-shaped and subcylindrical, and head anteriorly compressed. Other diagnostic characters include scaleless abdomen, horizontally placed pectoral and pelvic fins, 35-36 scales along the lateral line series, dark brownish spots in the predorsal region and along the sides of the body, relatively bigger head, deeper body and smaller mouth; hump-like shape in the predorsal region of bigger specimens (Ref. 75068).

Description: Dorsal fin iii,8; Anal fin ii,5; Pectoral fin v,11-12; Pelvic fin ii,7 (Ref. 75068).

Ease of Identification

Meristic characteristics of Psilorhynchus amplicephalus

Lateral Lines Interrupted: No
Scales on lateral line 32 - 36
Pored lateral line scales
Scales in lateral series 35 - 36
Scale rows above lateral line 4 - 4
Scale rows below lateral line 3 - 3
Scales around caudal peduncle 10 - 10
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 1
Finlets No. Dorsal   
Ventral  
Spines total
Soft-rays total 11 - 11
Adipose fin absent

Caudal fin

Attributes forked

Anal fin(s)

Fins number
Spines total
Soft-rays total 7 - 7

Paired fins

Pectoral Attributes  
Spines     
Soft-rays   16 - 17
Pelvics Attributes  
Position    abdominal  behind origin of D1
Spines     
Soft-rays   9 - 9
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