Dirofilaria immitis

DIROFILARIA IMMITIS

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Common name Heart worm of dog
Size Male : 20 cm; Female : 30 cm
Host
Dogs
Location
Right ventricle of heart and some times pulmonary artery
Intermediate host Mosquitoes - Culex, Anopheles, Aedes sp
Head end
  • Lips absent.
  • Cephalic papillae present.
  • Vulva situated just behind oesophagus.
  • Muscular and glandular portions of oesophagus without a sharp line of demarcation.
Male tail end
  • Spirally coiled blunt end.
  • Unequal and dissimilar spicules.
  • Left spicule is long and pointed.
  • Right spicule is short, spatula shaped and blunt caudal alae and papillae present.
Female tail end The uterus is filled with larvae.

Dirofilaria immitis

D.immitis-microfilaria   D.immitis-microfilaria
Last modified: Tuesday, 19 June 2012, 10:16 AM