Myxosporidan Infections in Some Fishes of Iowa*

Abstract
SYNOPSIS. A survey of 617 specimens of fishes representing 8 families in Iowa revealed coelozoic infections by Chloromyxum catostomi, Chloromyxum trijugum, and Myxidium macrocapsulare and histozoic infections by Henneguya exilis and Myxobolus spp. The trophozoite of M. macrocapsulare is described. Descriptive notes supplementary to previous literature are provided for the 3 coelozoic species.