Apophallus spp

From Dog
Adult Apophallus intestinal fluke[1]

Apophallus spp are a non-pathogenic intestinal fluke parasite of dogs.

Pathogenic species in dogs include:

  • Apophallus donicum
  • Apophallus muehlingi[2]

The life cycle of this parasite includes snails as first intermediate hosts and fish (usually mullets; Mugil cephalus) as second intermediate host. Dogs become infected from eating fish that contain encysted metacercariae[3].

Diagnosis is based on coprological identification of Apophallus eggs[4].

Treatment of this parasite in dogs is relatively effective with praziquantel.


  1. Kansas State University
  2. Molodozhnikova NM & Zhokhov AE (2007) The taxonomic diversity of the parasites of fishes in the Volga basin. III. Aspidogastrea and Trematoda. Parazitologiia 41(1):28-54
  3. Yamamoto N et al (2009) Prevalence of intestinal canine and feline parasites in Saitama Prefecture, Japan. Kansenshogaku Zasshi 83(3):223-228
  4. Robinson RD et al (1989) A survey of intestinal helminths of well-cared-for dogs in Jamaica, and their potential public health significance. J Helminthol 63(1):32-38