“…Therefore, it is imperative that squirrel monkeys, such as those used in malaria research [Young et al, 1975;Collins et al, 1978;Gysin et al, 1980;Dubois et al, 1984] where immunohematologic parame ters are of considerable importance, should be of the same origin and preferably bred and raised under the same conditions either in the wild or in the laboratory. Clearly laboratory-bred animals offer numerous advantages over wild-caught animals, thus breeding pro grams should be encouraged as suggested by other investigators [Long and Cooper, 1968;Kaplan, 1977].…”