Morphology Data of Petrocephalus degeni
Identification keys
Abnormalities
Main Ref. Kramer, B., R. Bills, P. Skelton and M. Wink, 2012
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 fusiform / normal
Cross section
Dorsal head profile
Type of eyes
Type of mouth/snout
Position of mouth
Type of scales cycloid scales
Diagnosis

It is distinguished from its congeners in the short dorsal fin originating above the first ray of the anal (Ref. 1568). Preanal length 64.1% of standard length; snout very short, the distance from the tip of the snout to the centre of the eye is 25.8% of head length (Ref. 1568, 91771). Width of mouth about 25% of head length (Ref. 1568). Teeth biscuspid, 10 in upper jaw and 22 in lower jaw (Ref. 1568).

Ease of Identification

Meristic characteristics of Petrocephalus degeni

Lateral Lines Interrupted: No
Scales on lateral line 41 - 41
Pored lateral line scales
Scales in lateral series
Scale rows above lateral line
Scale rows below lateral line
Scales around caudal peduncle 12 - 12
Barbels
Gill clefts (sharks/rays only)
Gill rakers
on lower limb
on upper limb
total
Vertebrae
preanal
total

Fins

Dorsal fin(s)

Attributes no striking attributes
Fins number 1
Finlets No. Dorsal   
Ventral  
Spines total 0 - 0
Soft-rays total 19 - 19
Adipose fin absent

Caudal fin

Attributes

Anal fin(s)

Fins number 1
Spines total 0 - 0
Soft-rays total 27 - 27

Paired fins

Pectoral Attributes  
Spines     
Soft-rays   
Pelvics Attributes  
Position    
Spines     
Soft-rays   
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
Comments & Corrections
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