US Fish & Wildlife Service
Date of this Version
1954
Citation
Journal of Parasitology (April 1954) 40(2): 232-233
Abstract
The metacercaria of Ornithodiplostomum ptychocheilush as been reported by Faust (1918; Illinois Biological Monographs 4(1): 1-120) from mesenteries of the squawfish, Ptychocheilus oregonensis (Richardson), and by Hughes and Piszcek (1928; Journal of Parasitology 15: 58-62) and Van Haitsma (1930; Transactions of the American Microscopical Society 49: 140-153) in the northeastern sand shiner, Notropis deliciosus stramineus (Cope). Van Haitsma (1930) found the adults in mergansers, Mergus americanus, M. serrator, Lophodytes cucullatus, and the old squaw duck, Harelda hyemalis. He also reared the metacercaria to the adult in young domestic ducks. Lyster (1940; Canadian Journal of Research 18D: 79-82) reported this worm as a cyathocotylid, Paracoenogonimus katsuradi n. sp., from L. cucullatus in Canada, but Dubois (1946; Extrait des actes de la Société helvétique des sciences naturelles Zurich: 153-154) placed this name in synonymy with O. ptychocheilus.
