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Macracanthorhynchus hirudinaceus

Macracanthorhynchus hirudinaceus

Macracanthorhynchus hirudinaceus

Taxonomy

  • Kingdom Animalia
  • Phylum Acanthocephala
  • Class Archiacanthocephala
  • Family Oligacanthorhynchidae
  • Genus Macracanthorhynchus

Final host

  • Pig, wild boar

    Morphology

  • Adults: large worms (≈ 10 cm male, ≈ 35-65 cm female) in length and ≈ 5-10 mm in width
  • The cuticle is transversely wrinkled
  • The anterior end possesses a small retractable proboscis covered with about six transverse rows of hooks
  • They have no alimentary canal
  • Eggs (≈ 70-110 µm) are ovoid, yellowish-brown, with a thick shell externally mamillated

    Cycle

  • Indirect with dung beetles as intermediate hosts

    Location

  • Small intestine

    Feeding

  • Intestinal content (absortion by the tegument)

    Diagnostic

  • Eggs

    Transmission

  • Cystacanth within the arthropod intermediate host (beetle)