TY - JOUR T1 - Observations on colonial peritrichs (Ciliata; Protozoa) of the Okoboji region. JF - Proceedings of the Iowa Academy of Sciences Y1 - 1941 A1 - Bishop, E. L. , A1 - Jahn, T. L. SP - 417 EP - 421 KW - Epistylis entzii VL - 48 N1 - Species Authority, General, Diags. ER -