Polystomella aculeata Foraminifera

UPDATE: I am pretty sure my earlier identification is incorrect. I now think this might be an Elphidium aculeatum (Polystomella aculeata).

This looks like a Nerotalia calcar foraminifera. It was found at Pago Beach on the island of Guam. Image is magnified 40 times under a microscope which should equate to a 1 mm field of view.

Learn more at the foramBARCODING web site.

Thanks to Pam for obtaining the specimen and Herb for the processed material.