Morphology Data of Mormyrus longirostris
Identification keys
Abnormalities
Main Ref. Skelton, P.H., 2001
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 terminal
Type of scales cycloid scales
Diagnosis

Diagnosis: dorsal fin greater than twice the length of anal fin; dorsal origin nearer tip of snout than caudal fin base; snout 2-2.5 times in head length; caudal peduncle less than 4 times in standard length (Ref. 52193).

Description: forebody and head relatively strongly decurved; females smaller and deeper bodied than males; teeth small, bicuspid, 5—7 in upper jaw, 8—12 in lower jaw; gill slits inclined on sides only (Ref. 52193).

Coloration: olive grey or brown above, lighter below (Ref. 52193).

Ease of Identification

Meristic characteristics of Mormyrus longirostris

Lateral Lines Interrupted: No
Scales on lateral line 85 - 100
Pored lateral line scales
Scales in lateral series
Scale rows above lateral line
Scale rows below lateral line
Scales around caudal peduncle 22 - 29
Barbels
Gill clefts (sharks/rays only)
Gill rakers
on lower limb
on upper limb
total
Vertebrae
preanal
total

Fins

Dorsal fin(s)

Attributes
Fins number 1
Finlets No. Dorsal   0
Ventral  0
Spines total 0
Soft-rays total 65 - 75
Adipose fin

Caudal fin

Attributes

Anal fin(s)

Fins number 1
Spines total 0
Soft-rays total 17 - 19

Paired fins

Pectoral Attributes  
Spines     
Soft-rays   
Pelvics Attributes  
Position    
Spines     
Soft-rays   
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
Entered by Torres, Armi G.
Modified by Bailly, Nicolas
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