Morphology Data of Argyrosomus beccus
Identification keys
Abnormalities
Main Ref. Sasaki, K., 1994
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
Dorsal head profile clearly concave
Type of eyes
Type of mouth/snout
Position of mouth
Type of scales
Diagnosis

Strikingly contrasts with other Argyrosomus species by its short, beak-like snout and its concave dorsal profile. Also differs from its congeners by its large eyes (23.8-26.9% HL), narrow interorbital width (15.2-15.6% HL), and long pectoral (23.2-23.8% SL) and pelvic (22.4-23.3% SL) fins.

Ease of Identification

Meristic characteristics of Argyrosomus beccus

Lateral Lines 1 Interrupted: No
Scales on lateral line 51 - 52
Pored lateral line scales
Scales in lateral series
Scale rows above lateral line 13 - 14
Scale rows below lateral line 17 - 19
Scales around caudal peduncle
Barbels
Gill clefts (sharks/rays only)
Gill rakers
on lower limb 8 - 9
on upper limb 3 - 5
total
Vertebrae
preanal
total

Fins

Dorsal fin(s)

Attributes
Fins number 1notched No
Finlets No. Dorsal   
Ventral  
Spines total 11 - 11
Soft-rays total 27 - 28
Adipose fin

Caudal fin

Attributes

Anal fin(s)

Fins number 1
Spines total 2 - 2
Soft-rays total 7 - 7

Paired fins

Pectoral Attributes  
Spines     0
Soft-rays   16 - 17
Pelvics Attributes  
Position    
Spines     
Soft-rays   
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