aseptatorina aseptatorina aseptatorina is a suborder of parasitic alveolates of the phylum apicomplexia aseptatorina scientific classification domain: eukaryota (unranked): sar (unranked): alveolata phylum: apicomplexa class: conoidasida subclass: gregarinasina order: eugregarinorida suborder: aseptatorina families aikinetocystidae allantocystidae diplocystidae enterocystidae ganymedidae lecudinidae monocystidae schaudinnellidae selenidiidae thiriotiidae urosporidae taxonomy there are eleven families recognised in this suborder. there are ~400 species in these families. five families — allantocystidae, diplocystidae, enterocystidae, ganymedidae and schaudinnellidae — have only one genus. aikinetocystidae has two genera. two families in this suborder — ganymedidae and thiriotiidae — infect crustaceans. the taxonomy of this suborder may be in need of revision as it has been shown based on ssu 18s rdna sequences that four families — ganymedidae from the aseptatorina and cephalolobidae, porosporidae and uradiophoridae from the septatorina appear to form a superfamily. the name cephaloidophoroidea has been proposed for this superfamily history this suborder was created by chakravarty in 1960. description the gamont of the species in this suborder have a single compartment. an epimerite or mucron is found in some species. syzygy occurs.