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Dicrocoelium dendriticum

Dicrocoelium dendriticum

Dicrocoelium dendriticum


  • Kingdom Animalia
  • Phylum Platyhelminthes
  • ClassTrematoda
  • Subclass Digenea
  • Order Plagiorchida
  • Family Dicrocoeliidae
  • Genus Dicrocoelium

Final host

  • Herbivorous mammals


  • Adult: flat and lanceolate in shape, semitransparent, less than 1 cm long
  • The oral and ventral suckers are located in close proximity
  • The gut is simple and the gonads, lobed or subspherical
  • The two testes lie in tandem behind the ventral sucker and the ovary lies inmediatly posterior to the testes
  • The uterus fills the lower half of the body
  • The vitelline glands lie in the middle third of the side margins of the body
  • Eggs: small (≈ 45 x 30 µm), dark brown and operculate, contain a miracidium when passed in the faeces


  • Indirect with two intermediate hosts
  • 1st intermediate host: land snails (Cernuella, Helicella, etc.)
  • 2nd intermediate host: ants (Formica spp)


  • Liver: smaller bile ducts and gallbladder


  • Bile juices


  • Egg


  • Metacercaria in 2nd IH (ants)