Morphology Data of Arius festinus
Identification keys
Abnormalities
Main Ref. Ng, H.H. and J.S. Sparks, 2003
Appearance refers to
Bones in OsteoBase

Sex attributes

Specialized organs
Different appearance
Different colors
Remarks

Descriptive characteristics of juvenile and adult

Striking features none
Body shape lateral fusiform / normal
Cross section oval
Dorsal head profile more or less straight
Type of eyes more or less normal
Type of mouth/snout more or less normal
Position of mouth sub-terminal/inferior
Type of scales
Diagnosis

Body moderately compressed (Ref. 56505). Vomerine teeth in a single pair of ovoid patches (Ref. 56505). Short pelvic fins, 15.2-15.6 % of SL, that do not reach the anal-fin origin when adpressed (Ref. 56505). Dorsal surface of head and body uniform gray to grayish brown, upper third of head and body darkest, gradually fading to lighter color along middle third of head and body; lower third and ventral surfaces of head and body dirty white (Ref. 56505). Adipose fin gray, dorsal fin rays gray, fin rays of all other fins with scattered gray melanophores (Ref. 56505).

Ease of Identification

Meristic characteristics of Arius festinus

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 53 - 53

Fins

Dorsal fin(s)

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

Caudal fin

Attributes

Anal fin(s)

Fins number 1
Spines total
Soft-rays total

Paired fins

Pectoral Attributes  
Spines     
Soft-rays   
Pelvics Attributes  more or less normal
Position    abdominal  behind origin of D1
Spines     
Soft-rays   
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
Entered by Boden, Gert
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