Morphology Data of Labeo meroensis
Identification keys
Abnormalities
Main Ref. Moritz, T., 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
Cross section
Dorsal head profile
Type of eyes
Type of mouth/snout
Position of mouth
Type of scales
Diagnosis

Diagnosed from all other Nilotic Labeo species by having only 5.5 scale rows between lateral line and mid-dorsal line (vs. 6.5 or more). Distinguished from all other African congeners except Labeo djourae and Labeo nunensis by the combination of the following characters: cylindriform body, transverse plicae on the inner surface of the lips, 5.5 scale rows between lateral line and mid-dorsal line, 39 to 41 scales in lateral line and 16 scales around the caudal peduncle. Differs from Labeo djourae from the Chad and Benue systems and Labeo nunensis from the Sanaga river in Cameroon by having a larger eye diameter (21.5-27.4% of head length vs. 14.5-20.8% in Labeo djourae and 14.0% in the type material of Labeo nunensis); from Labeo nunesis by the absence of anterior filament on dorsal fin (vs. presence); from Labeo djourae in having shorter snout (32.2-41.4 of HL vs. 46.7-55.9), smaller interorbital width (30.5-38.5 vs.35.0-50.0% of head length); and absence of emargination in the dorsal snout region (vs. prominence or presence) (Ref. 75742).

Description: dorsal fin with 4 unbranched and 10 branched rays; anal fin with 3 or 4 unbranched and 5 branched rays; pelvic fins with one unbranched, seven branched and again one unbranched ray; scale rows between lateral line and ventral fin 3.5-4.5 (Ref. 75742).

Ease of Identification

Meristic characteristics of Labeo meroensis

Lateral Lines Interrupted: No
Scales on lateral line 39 - 41
Pored lateral line scales
Scales in lateral series
Scale rows above lateral line 5.5 - 5.5
Scale rows below lateral line
Scales around caudal peduncle 16 - 16
Barbels 4
Gill clefts (sharks/rays only)
Gill rakers
on lower limb
on upper limb
total
Vertebrae
preanal 18 - 19
total 38 - 38

Fins

Dorsal fin(s)

Attributes no striking attributes
Fins number 1
Finlets No. Dorsal   
Ventral  
Spines total
Soft-rays total 14 - 14
Adipose fin absent

Caudal fin

Attributes forked

Anal fin(s)

Fins number
Spines total
Soft-rays total 7 - 8

Paired fins

Pectoral Attributes  more or less normal
Spines     
Soft-rays   16 - 23
Pelvics Attributes  more or less normal
Position    abdominal  behind origin of D1
Spines     
Soft-rays   9 - 9
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
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