schizogregarinina schizogregarinina schizogregarinina is a superfamily in the phylum apicomplexia. neogregarinorida scientific classification domain: eukaryota (unranked): sar (unranked): alveolata phylum: apicomplexa class: conoidasida subclass: gregarinasina order: neogregarinorida superfamily: schizogregarinina families ophryocystidae schizocystidae history this superfamily was created by léger in 1907. taxonomy there are two families (ophryocystidae and schizocystidae) in this suborder. general characteristics species in this superfamily infect the intestines of arthropods, annelids and tunicates. the trophozoites may develop intracellularly or extracellularly. in species where the trophozoites develop extracellularly, they are attached by an epimerite. when the schizonts develop they appear like a bunch of grapes attached to the cell.