Keywords: Oxyrrhis marina.jpg Oxyrrhis marina 1902 Cite book Marine Protozoa from Woods Hole Bulletin of the United States Fish Commission vol 21 Calkins Gary N Washington DC Government Printing Office 1901 Fig 15 Creator Gary Nathan Calkins PD-UWASH-FMIB Institution University of Washington FMIB-source accession number 40825 Uploaded with UploadWizard Dinophyceae Gary Nathan Calkins |