First Record of Trichodina magna Van As and Basson, 1989 (Ciliophora: Trichodinidae) from Gills of Blue Tilapia Oreochromis aureus (Steindachner, 1864) in Iraq. IHJPAS. 2018;2017(IHSCICONF):59-63. doi:10.30526/2017.IHSCICONF.1771