title: Eimeria griseus n. sp. (Apicomplexa: Eimeriidea) from the gray monitor, Varanus griseus in Saudi Arabia.
abstract: Eimeria griseus n. sp. is described from the gall bladder of the gray monitor, Varanus griseus from Al-Thumamah, central region of Saudi Arabia. Sporulated oocysts are ellipsoid in shape, measuring 32.8x23.0 (30.0-38.3x20.0-25.0) microm with smooth yellowish bilayered wall, 1.2 (0.9-1.3) microm thick. Micropyle, polar granule and oocyst residuum are absent. Sporocysts are ellipsoid, measuring 11.8x8.5 (10.7-12.6x7.5-9.0) microm. Sporocyst residuum is present. Sporocysts lack a Stieda body. Sporozoites are banana-shaped blunt at one end and slightly tapered at second. Eimeria species from Varanus hosts are compared.
authors.affiliation: Department of Zoology, College of Science, King Saud University, P.O. Box 26213, Riyadh 11486, Saudi Arabia.
authors.forename: Mohamed S
authors.initials: MS
authors.lastname: Alyousif
authors.forename: Yaser R
authors.initials: YR
authors.lastname: Al-Shawa
authors.forename: Mohammed
authors.initials: M
authors.lastname: Mubarak
mesh_terms: D000818:Animals; D004539:Eimeria / Q000648:ultrastructure*; D005260:Female; D005704:Gallbladder / Q000469:parasitology; D008116:Lizards / Q000469:parasitology*; D033661:Oocysts / Q000648:ultrastructure; D012529:Saudi Arabia