Left side view of Saprodinium dentatum
(Lauterborn,1901) Lauterborn,1908. Odontostome ciliate with laterally compressed complex rigid pellicle. 8 posterior spines with needle-thin tips. Curved anterior spine projecting to left. Spinous projection adjacent to cytostome. Anterior ciliature and sharp posterior spines respectively distinguish this genus from Atopodinium
. Polysaprobic. Macronucleus in three rounded parts. From stagnant freshwater pond with decaying leaves near Boise, Idaho. Brightfield.