Ectoparasites from different neighborhood of Manaus were collected from august 2001 to May 2002. On dogs it was found: Ctenocephalides f. felis (Bouché, 1835) (Siphonaptera, Pulicidae), Heterodoxus spiniger (Enderlein, 1909)(Phthiraptera, Boopidae), Trichodetes canis (De Geer, 1778) (Phthiraptera, Trichodectidae) and Rhipicephalus sanguineus (Latreille,1806) (Acari, Ixodidae). On cats: C. f. felis. The prevalence of ectoparasites was 80.8% to dogs and 72.7% to cats. For the flea C. f. felis was 28.7% to dogs and 72.7% to cats. For the lice H. spiniger was 12.3% for dogs. For the lice T. canis was 0.1% for dogs and for the tick R. sanguineus was 63% for dogs. The infestation index for fleas was 1.26 to dogs and 1.27 to cats. The sexual ratio obtained was 1.96:1 to dogs and 3.66:1 to cats. The flea C. canis (Curtis, 1826) registered in 1922 was not found.
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