Morphology Data of Marcusenius meronai
Identification keys
Abnormalities
Main Ref. Bigorne, R., 1990
Appearance refers to
Bones in OsteoBase

Sex attributes

Specialized organs no special organs
Different appearance males alike females
Different colors males alike females
Remarks

Descriptive characteristics of juvenile and adult

Striking features none
Body shape lateral fusiform / normal
Cross section compressed
Dorsal head profile clearly concave
Type of eyes more or less normal
Type of mouth/snout more or less normal
Position of mouth terminal
Type of scales cycloid scales
Diagnosis

Median depression on head. SL/Body Depth ratio = 3.7-3.8. Origin of dorsal fin in same level or slightly behind anal fin origin. Pectoral fins shorter than head and the extremities reach the origin of the pelvic fins. Small eyes with diameter 6.0-6.8 x head length. Affinities: close to M. ussheri, differentiated by the number of dorsal fins and the eyes which are smaller relative to the head length. M. mento also found in the area of repartition and distinguished by the number of dorsal and anal fins and the number of scales on the lateral line.

Ease of Identification

Meristic characteristics of Marcusenius meronai

Lateral Lines Interrupted: No
Scales on lateral line 50 - 54
Pored lateral line scales
Scales in lateral series
Scale rows above lateral line
Scale rows below lateral line
Scales around caudal peduncle
Barbels 0
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 21 - 23
Adipose fin absent

Caudal fin

Attributes forked; more or less normal

Anal fin(s)

Fins number 1
Spines total 0 - 0
Soft-rays total 25 - 29

Paired fins

Pectoral Attributes  more or less normal
Spines     
Soft-rays   
Pelvics Attributes  more or less normal
Position    abdominal  before origin of D1
Spines     
Soft-rays   
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
Entered by Palomares, Maria Lourdes D.
Modified by Bailly, Nicolas
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cfm script by eagbayani, 17.10.00, php script by rolavides, 13/03/08 ,  last modified by sortiz, 06.27.17