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Table 5 Measurements of microfilaria recorded by various authora

From: A survey of canine filarial diseases of veterinary and public health significance in India

Filarial species Special features of microfilaria Microfilaria
   Length (μm) Width (μm)
Dirofilaria immitis Unsheathed, tapered head, relatively straight tail 218 - 329 5.4 - 6.2
Dirofilaria repens   283 - 360 7.1 - 8.3
Acanthocheilonema reconditum Unsheathed, round curved body, cephalic hook, blunt anterior end 250 - 270 4 - 4.5
Acanthocheilonema dracunculoides   195 - 230 Not available
Cercopithifilaria grassi   567 Not available
Microfilaria auquieri Unsheathed 58 - 102 Not available
Microfilaria ochmanni Sheathed 320 Not available
Brugia malayi Sheathed, cephalic space: 6.3 - 6.7 μm 254 - 234 5.99-7.99
Brugia pahangi Sheathed, cephalic space: 6.4 μm 200 - 189 4 - 5
Brugia ceylonensis Sheathed, blunt tail, cephalic space: 6.3 - 6.7 μm 220 - 275 Not available
  1. aData obtained from [2, 6, 21, 53, 54]