| a new coccidian parasite (apicomplexa: eimeriidae) from the scimitar-horned oryx, oryx dammah. | oocysts of eimeria oryxae sp. n. are described from the faeces of the scimitar-horned oryx, oryx dammah (cretzschmar, 1826), from zoo garden, riyadh city, saudi arabia. sporulated oocysts were ellipsoid in shape measuring 20.9 x 17.1 (16.7-24.2 x 15.5-20.2) microm, with smooth brownish-yellow double layered wall. micropyle and ellipsoidal polar granules are present, but micropylar cap and oocyst residuum are absent. sporocysts are ovoid, reaching 10.0 x 5.7 (9.2-11.0 x 5.2-6.5) microm with stied ... | 2002 | 12049259 |