Morphology Data of Nibea microgenys
Identification keys
Abnormalities
Main Ref. Sasaki, K., 2001
Appearance refers to Male; Female
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
Diagnosis

Snout pointed, projecting in front of upper jaw; mouth small, inferior, slightly oblique; upper jaw length 32-38 % of head length, lower jaw length 34-40 % of head length. Mental pores in 3 pairs, the first close together, united by a crescent-shaped groove just behind symphysis. Teeth differentiated into large and small in upper jaw only; a band of villiform teeth in lower jaw. Second anal spine long, stiff, 44 to 57 % of head length. Swim bladder carrot-shaped, with 19-21 pairs of arborescent appendages along its sides, the first pair entering head beyond transverse of septum. Sagitta (large earstone) with a tadpole-shaped impression, the tail of which is J-shaped.

Ease of Identification

Meristic characteristics of Nibea microgenys

Lateral Lines 1 Interrupted: No
Scales on lateral line 48 - 50
Pored lateral line scales
Scales in lateral series
Scale rows above lateral line 9 - 14
Scale rows below lateral line 11 - 17
Scales around caudal peduncle
Barbels
Gill clefts (sharks/rays only)
Gill rakers
on lower limb 5 - 8
on upper limb
total
Vertebrae
preanal
total

Fins

Dorsal fin(s)

Attributes
Fins number 1notched No
Finlets No. Dorsal   
Ventral  
Spines total 11 - 11
Soft-rays total 29 - 31
Adipose fin

Caudal fin

Attributes

Anal fin(s)

Fins number 1
Spines total 2 - 2
Soft-rays total 7 - 7

Paired fins

Pectoral Attributes  
Spines     
Soft-rays   
Pelvics Attributes  
Position    
Spines     
Soft-rays   
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