真球蟲目

属

本目之下有19个科、三个亚科及69个属已命名。单单是Eimeria一属之下就包括有约1500个物种，是本亚目之下最大的属。若撇开各属所属之科及亚科，按其拉丁学名的顺序如下：
Adelea, Adelina, Aggregata, Alveocystis, Atoxoplasma, Babesiosoma, Barrouxia, 贝诺孢子虫属（Besnoitia）, Calyptospora, 核孢子虫属（Caryospora）, Caryotropha, Chagasella, Choleoeimeria,隐胞子虫属（Cryptosporidium）, Crystallospora, Cyclospora, Cyrilia, Cystoisospora, Dactylosoma, Desseria, Diaspora, Dorisa, Dorisiella, Eimeria, Elleipsisoma, Epieimeria, Frenkelia, Ganapatiella, Gibbsia, Goussia, Gousseffia, Grasseella, Hammondia, Haemogregarina, Hemolivia, Hepatozoon, Hoarella, Hyaloklossia,等孢球虫属（Isospora）, Ithania, Karyolysus, Klossia,  Klossiella, Lankesterella, Legerella, Margolisiella, Mantonella, Merocystis, Nephroisospora, Neospora, Octosporella, Orcheobius, Ovivora, Pfeifferinella, Polysporella, Pseudoklossia, Pythonella, Rasajeyna, Sarcocystis, Schellackia, Selenococcidium, Selysina, Sivatoshella, Skrjabinella, Spirocystis, 弓形虫属（Toxoplasma）, Tyzzeria, Wenyonella