organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Domain eukaryotes see Domain Eukaryota Chatton, 1925
     alveolates Cavalier-Smith see [unranked] Alveolata Cavalier-Smith, 1991
       Phylum Apicomplexa Levine, 1970 see Infraphylum Apicomplexa Levine, 1970
         Class Conoidasida Levine, 1988 see Superclass Sporozoa Leuckart, 1879
           Subclass Gregarinasina Dufour, 1828
             Order Eugregarinorida Léger, 1900
               Suborder Septatorina Lankester, 1885
                 Superfamily Gregarinicae Chakravarty, 1960 see Superfamily Gregarinoidea Labbé, 1899
                   Family Hirmocystidae Grassé, 1953
                     01 Genus Hirmocystis Labbé, 1899
                     02 Genus Neohirmocystis Ghose, Ray & Haldar, 1986
                     03 Genus Hyalospora Schneider, 1875
                     04 Genus Tettigonospora Smith, 1930
                     05 Genus Dumbbellicephalus Bala & Kaur, 1988
                     06 Genus Euspora Schneider, 1875
                     07 Genus Tintinospora Hoshide, 1959
                     08 Genus Arachnocystis Levine, 1979
                     09 Genus Acanthogregarina Kalavati, Narasimhamurti & Vidyullatadevi, 1988
                     10 Genus Protomagalhaensia Pinto, 1918
                     11 Genus Eliptocystis Sengupta, Ghosh & Haldar, 1991
                     12 Genus Pintospora Carini, 1944
                     13 Genus Endomycola Théodoridès, Desportes & Jolivet, 1972
                     14 Genus Retractocephalus Haldar & Chakraborty, 1976
                     15 Genus Liposcelisus Sarkar & Haldar, 1980
                     16 Genus Quadruhyalodiscus Kundu & Haldar, 1984