The Protozoa of Wild Monkeys

Abstract

Notes on recent literature of the subject are given, with new evidence by the author that wild monkeys in the Philippines are infected with most if not all of the species of protozoa that have been found in captive specimens. It seems therefore probable that the protozoan parasites now living in monkeys are descendants of those that inhabited the common ancestors of man and monkeys, thus accounting for the close similarity in the protozoan fauna of man and monkeys.