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Key to trematodes reported in waterfowl

January 1, 1981

This key is the second in a series for identification of the helminths reported in waterfowl (Family Anatidae, Order Anseriformes). The first was a key to nematodes (McDonald 1974).

The trematodes show the greatest variety of forms among the helminth parasites of waterfowl, including over half of all species reported; sometimes this group also includes the greatest part of the worms in a single bird. Over 500 species of trematodes have been reported in waterfowl. Almost all of these have been included in the present set of keys; it was not possible, however, to obtain the descriptions of a few forms (7 of 525).

Citation Information

Publication Year 1981
Title Key to trematodes reported in waterfowl
Authors Malcolm Edwin McDonald
Publication Type Report
Publication Subtype Federal Government Series
Series Title Resource Publication
Series Number 142
Index ID rp142
Record Source USGS Publications Warehouse
USGS Organization National Wildlife Health Center; Northern Prairie Wildlife Research Center