selysina selysina selysina is a genus in the phylum apicomplexa. selysina scientific classification domain: eukaryota clade: diaphoretickes clade: sar clade: alveolata phylum: apicomplexa class: conoidasida order: eucoccidiorida suborder: eimeriorina family: aggregatidae genus: selysinaduboscq, 1917 species selysina duboscqi selysina incerta selysina perforans history this genus was created by duboscq in 1917. taxonomy there are three species recognised in this genus.