1) Pharyngostomum cordatum eggs were detected from 32 domestic cats (1.1%) out of 3,000 examined in Fukuyama District, Hiroshima Prefecture, during the period from 1971 to 1982. 2) Spirometra erinacei was also parasitized at a high rate of 78% in the cats infected with P. cordatum. 3) No relation was found between the infected cats and thier sex, age, or species.