Keywords: FMIB 40826 Astasia contorta--Two Aspects.jpeg Astasia contorta--Two Aspects Subject Astasia Tag Invertebrates 1902 Cite book Marine Protozoa from Woods Hole Calkins Gary N Washington DC Government Printing Office 1902 Bulletin of the United States Fish Commission vol 21 1901 Fig 16 Creator Gary Nathan Calkins PD-UWASH-FMIB Institution University of Washington FMIB-source accession number 40826 Images from the Freshwater and Marine Image Bank to check Gary Nathan Calkins Astasia contorta |