Morphology Data of Marcusenius livingstonii
Identification keys
Abnormalities
Main Ref. Boulenger, G.A., 1909
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

Description: Depth of body 3.6 times in total length, length of head 4.5 times in total length (Ref. 1878). Caudal peduncle 3 times as long as adeep, a little shorter than head (Ref. 1878). Head nearly as long as deep, with curved upper profile; snout 2/7 length of head; chin with a globular dermal appendage; teeth bicuspid, 5 in upper jaw, 6 in lower jaw; eye smell, half length of snout, 2/5 interorbital width (Ref. 1878). Dorsal fin with 21-24 rays, originating above 10th ray of anal fin, its length 2.5 times in its distance from head; anal fin with 28-31 rays, equally distant from base of pelvic fin and from base of caudal fin; pectoral fin obtusely pointed, 3/4 length of head, twice length of pelvic fin, reaching a little beyond base of latter; caudal fin with obtusely pointed lobes (Ref. 1878). Scales in lateral line 62-65, scales around caudal peduncle 12 (Ref. 1878).

Colouration: Silvery, brownish on the back; a dark brown vertical bar on the body below origin of dorsal fin (Ref. 1878).

Ease of Identification

Meristic characteristics of Marcusenius livingstonii

Lateral Lines Interrupted: No
Scales on lateral line 62 - 65
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 21 - 24
Adipose fin absent

Caudal fin

Attributes forked; more or less normal

Anal fin(s)

Fins number 1
Spines total 0 - 0
Soft-rays total 28 - 31

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 )
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