Tiarina fusus - The mouth end of this marine ciliate is at the top. It has
calcium carbonate plates (the beaded surface). It feeds on microscopic algae.
Image ID: fish2797, NOAA's Fisheries Collection Credit: Courtesy of Dr. John R. Dolan, Laboratoire d'Oceanographique de Villefranche; Observatoire Oceanologique de Villefrance-sur-Mer
