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Publication Extents

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Hybridization of Canada geese with blue geese in the wild
H.K. Nelson
1952, The Auk (69) 425-428
While carrying out hunter bag checks in the vicinity of Sand Lake National Wildlife Refuge, Columbia, South Dakota, during the 1950 waterfowl hunting season, the author examined two adult male geese which proved to be crosses between one of the smaller Canada Geese (possibly Richardson's Goose, Branta canadensis hutchinsi) and...
Diseases and parasites of the sea lamprey, Petromyzon marinus, in the Lake Huron basin
Alberton L. McLain
1952, Transactions of the American Fisheries Society (81) 94-100
Sea lampreys from the Lake Huron basin carried no external parasites and showed a fairly low degree of infection by internal parasites. The material examined represented three life-history stages of the sea lamprey. Recently transformed downstream migrants (215 specimens) harbored only nematodes belonging to the genus Camallanus. The percentage of...