PARASITES OF WATERFOWL FROM SOUTHWEST TEXAS: II. THE SHOVELER, Anas clypeata.
Thirty-eight shoveler ducks, Anas clypeata , were collected in the Rio Grande Valley, Hudspeth County, Texas. Nineteen species of helminths, six species of lice and a sarcosporidian, Sarcocystis rileyi , were recorded. Seventeen of the nineteen species of helminths were observed in fall migrants and twelve species were recorded from spring migrants. The nematode Alifilaria pochardi Ali, 1969, is a new host and American record.
Department of Biological Sciences, The University of Texas at El Paso, Texas 79968, USA.
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Broderson
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Canaris
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Bristol