Abstract
Eight species of parasitic helminths, one acanthocephalan, four cestodes, one trematode, one nematode, and one leech species, are reported from various hosts: Acanthocephalus parksidei is reported from 12 host species with 10 new host records; first record in Lake Michigan. Host-A.parksidei associations are discussed. Echinorhynchus salmonis was also recovered. Morphological observations of most parasites are included with particular reference to Cyathocephalus truncatus (new host record in slimy sculpin) and Eubothrium salvelini (new host in bloater and locality records). Other parasites recovered include Glaridacris catostomi, Proteocephalus exiguus, Triganodistomum attenuatum (new locality record), Dacnitoides cotylophora, and Placobdella parasitica (new host and locality records). The description of E.salvelini is supplemented and the diagnosis of the genera Cyathocephalus and Dacnitoides emended.