Keywords: FMIB 34759 Mytilus californianus, the Large Sea Mussel (Upper); Mytilus edulis, the Smaller Sea Mussel (Lower).jpeg Mytilus californianus the Large Sea Mussel Upper ; Mytilus edulis the Smaller Sea Mussel Lower Subject California mussel Mytilus edulis Mussels Tag Shellfish 1923 Cite book Shellfish Resources of the Northwest Coast of the United States Edmondson Charles H Washington DC Government Printing Office 1923 Report of the United States Commissioner of Fisheries 1922 Fig 13 Creator Charles Howard Edmondson PD-UWASH-FMIB Institution University of Washington FMIB-source accession number 34759 Images from the Freshwater and Marine Image Bank to check Charles Howard Edmondson Mytilus californianus Mytilus edulis |