Notes on Some Trematodes Parasiti,c in Alaskan Canidae

Except for the report of Hadwen (1922) and a few miscellaneous records, little information is available relative to the helminth parasites infecting canine animals in Alaska. During the past two years, 520 autopsies on can ids have been performed in connection with the investigation of animal-borne diseases. The purpose of this note is to record the occurrence of four species of trematodes observed in Alaskan can ids during the course of these studies; one species is apparently reported for the first time from North America. These four parasites are mentioned separately below: Metorchis albidus (Braun, 1833) Ackert (1937) recorded this trematode from an Eskimo dog which had been imported into the United States from Alaska. The present report is the second record of the species from North America