Parasites of Horned Toads (Phrynosoma spp.), with Records from Nevada

Abstract
One hundred andTour horned toads, mostly Phrynosoma p. platyrhinos Girard, were collected from 6 countries within the state of Nevada and examined for helminth parasites. Two species of Nematoda, Skrjabinoptera phrynoBoma (Ortlepp, 1922) and Cyrtosomum readf Gambino, 1958, and one adult cestode Diochetos phrynosomatis Harwood, 1932 were collected. In addition, 11 animals harbored tapeworm cysts in their livers. A checklist of endo- and ectoparasites of horned toads is presented. This study represents the first published report of helminths of this host from Nevada.