. The Canadian field-naturalist. 1993 Goodchild: Status of the Flathead Catfish 411. Figure 1. Drawing of the Flathead Catfish, Pylodictis olivaris, from Trautman (1981) by permission. A "relict" colony has been recorded in the Ohio waters of Lake Erie since 1892 but only four speci- mens have been collected and preserved from the United States waters of the lake since 1938 (Cleveland Museum collection and Ohio State University Museum; OSUM 1866, 6664, 8467). A small population of Flathead Catfish also exists in the Huron River where they are taken yearly (Trautman 1981). The Flathea
. The Canadian field-naturalist. 1993 Goodchild: Status of the Flathead Catfish 411. Figure 1. Drawing of the Flathead Catfish, Pylodictis olivaris, from Trautman (1981) by permission. A "relict" colony has been recorded in the Ohio waters of Lake Erie since 1892 but only four speci- mens have been collected and preserved from the United States waters of the lake since 1938 (Cleveland Museum collection and Ohio State University Museum; OSUM 1866, 6664, 8467). A small population of Flathead Catfish also exists in the Huron River where they are taken yearly (Trautman 1981). The Flathead Catfish has been sparingly intro- duced outside its native range. Cahn (1927) reports unsuccessful introductions of Pylodictis olivaris from the Mississippi River into Oconomowoc and Nagawicka lakes, in Wisconsin. Introductions into the Colorado River, Arizona, in 1962, however, appear to have been successful. As a result of the Arizona stocking, it is now established in the Highland Canal, Imperial County, California (Bottroff et al. 1969). Canada Pylodictis olivaris was unknown from Canadian waters until 1978 when it was captured in a commer-. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Ottawa Field-Naturalists' Club. Ottawa, Ottawa Field-Naturalists' Club
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