Morphology Data of Bagrus degeni
Identification keys
Main Ref. Boulenger, G.A., 1911
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
Diagnosis

Head much depressed, smooth above; long and narrow occipital processus, narrowly separated from interneural bone; snout broadly rounded, projecting beyond lower jaw (Ref. 2988). Eye iris dark, with a vivid yellow ring (Ref. 1568). Premaxillary band of teeth 6-7 times as long as broad, shorter than and as broad as or a little narrower than the vomerine band; maxillary barbel 1.25-2.33 times head length, extending to end of pectoral fin or a little beyond in adult, to end of ventral in young; nasal barbel 1/7(adult)-1/3 of head length; outer mandibular barbel 1.5-1.83 times length of inner and 0.5-1 times head length; gill-rakers rather long, widely set; dorsal spine smooth, less than 0.5 times head length; longest soft ray of dorsal fin 0.5-0.75 head length; adipose fin 4-5.5 times as long as deep, 1.5-1.66 times as long as dorsal fin; distance between dorsal and adipose fin 0.5-0.66 times dorsal fin length; pectoral spine not serrated in adult; caudal fin deeply forked, upper lobe with long filament (Ref. 2988).

Coloration: species blackish brown or dark steel-blue above, whitish or brassy yellow beneath with grey to blackish fins (Ref. 2988). Dark, nearly black on the back, fading into silver on the body, tinged with yellow (Ref. 36900).

Ease of Identification

Meristic characteristics of Bagrus degeni

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 10 - 11
on upper limb
total
Vertebrae
preanal
total

Fins

Dorsal fin(s)

Attributes
Fins number
Finlets No. Dorsal   
Ventral  
Spines total 1 - 1
Soft-rays total 9
Adipose fin present

Caudal fin

Attributes forked; with dorsal filament

Anal fin(s)

Fins number
Spines total
Soft-rays total 12 - 13

Paired fins

Pectoral Attributes  
Spines     1
Soft-rays   
Pelvics Attributes  
Position    
Spines     
Soft-rays   
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
Entered by Musschoot, Tobias
Modified by Musschoot, Tobias
Comments & Corrections
Sign our Guest Book
Back to Search
cfm script by eagbayani, 17.10.00, php script by rolavides, 13/03/08 ,  last modified by sortiz, 06.27.17