sarcocystis accipitris sarcocystis accipitris sarcocystis accipitris is a species of parasites of the genus sarcocystis. sarcocystis accipitris scientific classification domain: eukaryota clade: diaphoretickes clade: sar clade: alveolata phylum: apicomplexa class: conoidasida order: eucoccidiorida family: sarcocystidae genus: sarcocystis species: s. accipitris binomial name sarcocystis accipitriscern & kvasnovsk, 1986 description this species was described by cern and kvasnovsk in 1986. the sarcocysts measure 15 to 17 by 13 to 15 micrometres in diameter. clinical features and host pathology the only known hosts of this species are the eurasian goshawk (accipiter gentilis) - the definitive host - and the canary (serinus canaria) - the intermediate host.