Detailed descriptions are given of the sporulated oocysts and sporozoites of the following species of coccidia from cattle Eimeria bovis (Zublin, 1908) Fiebiger, 1912; E. auburnensis Christensen and Porter, 1939, E. ellipsoidalis Becker and Frye, 1929; and E. zurnii (Rviolta, 1878) Martin, 1909.