Keywords: FMIB 49837 Anterior end of Xylotrya sciacca Tryon, showing shell and foot.jpeg check categories 17 September 2015 2 Anterior end of Xylotrya sciacca Tryon showing shell and foot Subject Xylotrya br>Marine borers Tag Mollusks 1921 Cite book Report on the San Francisco Bay Marine Piling Survey San Francisco Bay Marine Piling Committee San Francisco CA San Francisco Bay Marine Piling Committee 1921 1st Plate 18 Fig 1 San Francisco Bay Marine Piling Committee PD-UWASH-FMIB Institution University of Washington FMIB-source accession number 49837 Images from the Freshwater and Marine Image Bank to check San Francisco Bay Marine Piling Committee Mollusca |