International Pacific Halibut Commission International Pacific Halibut Commission The International Pacific Halibut Commission (IPHC) is an International Fisheries Organization, having Canada and the United States as its members, responsible for the management of stocks of Pacific halibut or "Hippoglossus stenolepis" within the Pacific waters of its member states. It was founded in 1923 by an international treaty. The original treaty has been revised three times (1953,1976,1979). The 1979 amendment clarified the role of the IPHC in the management of the fishery through the North Pacific Halibut Act of 1982. It has carried out many activities including the use of chartered commercial fishing vessels to
Flat pebblesnail Flat pebblesnail The flat pebblesnail ("Lepyrium showalteri") is a species of freshwater snail, an aquatic gastropod mollusk in the family Lithoglyphidae. This species is endemic to the United States. This snail has been listed as endangered on the United States Fish and Wildlife Service list of endangered species since October 28, 1998. "Lepyrium showalteri" is the only species in the genus Lepyrium. "Lepyrium showalteri" is the type species of the genus "Lepyrium". Lepyriidae is a synonym of Lithoglyphinae. The flat pebblesnail is a small snail in the family Lithoglyphidae; however, the species has a large and distinctive-looking shell. This snail's