Keywords: FMIB 38231 Three-horned warty-back, Obliguaria reflexa; marsupium occupying middle region of outer gills.jpeg check categories 18 September 2015 5 Three-horned warty-back Obliguaria reflexa; marsupium occupying middle region of outer gills Subject Freshwater mussels Obliguaria Tag Shellfish 1922 Cite book Natural History and Propagation of Fresh-Water Mussels Bulletin of the United States Bureau of Fisheries vol 37 1919-1920 Coker R E ; Shira A F ; Clark H Walton; Howard A D Washington DC Government Printing Office 1922 Plate XIII-3 Creator Robert Ervin Coker A F Shira Creator Howard Walton Clark A D Howard PD-UWASH-FMIB Institution University of Washington FMIB-source accession number 38231 Images from the Freshwater and Marine Image Bank to check Robert Ervin Coker A F Shira Howard Walton Clark A D Howard Shellfish |