http://vmp.bioe.orst.edu/Documents/mism_ID_Cards5print.pdf http://wdfw.wa.gov/fishing/shellfish/clams/ Washington Department of Fish and Wildlife: Clams Invasive species in Puget Sound http://wdfw.wa.gov/fishing/shellfish/clams/ wdfw.wa.gov Bay clams in Washington http://wdfw.wa.gov/fishing/shellfish/clams/ http://wdfw.wa.gov/fishing/shellfish/clams/ http://wdfw.wa.gov/fishing/shellfish/clams/ http://wdfw.wa.gov/fishing/shellfish/clams/ http://wdfw.wa.gov/fishing/shellfish/clams/