Septatorina  Septatorina is a suborder of parasitic alveolates of the phylum Apicomplexa  There are five superfamilies and one family in this suborder: superfamilies "Fusionicae", "Gregarinicae", "Porosporicae", "Stenophoricae" and "Stylocephaloidea"; and family "Blabericolidae". This taxon was created in 1885 by Ray Lankester. The defining morphological feature of this taxon is the presence of septum dividing the gamont or trophozoite into a protomerite and deutomerite. The septum may not always be visible by light microscopy. Species in this taxon also have an epimerite. Species in this taxon infect invertebrates and especially arthropods.