title: A new eimerian (Apicomplexa: Eimeriidae), from ornate box turtle, Terrapene ornata (Agassiz) (Testudines: Emydidae) from northwest Arkansas, USA.
abstract: A new species of Eimeria Schneider, 1875 (Apicomplexa: Eimeriidae) collected from an ornate box turtle, Terrapene ornata (Agassiz) from Arkansas, USA, is described. Oöcysts of Eimeria doddi n. sp. are ovoidal to ellipsoidal with a smooth, light to darker brown, bi-layered wall, measure 21.1 × 14.0 µm, and have a length/width (L/W) ratio of 1.5; both micropyle and oöcyst residuum are absent, but a polar granule is present. Sporocysts are ellipsoidal, 9.9 × 6.1 µm, L/W 1.6; the Stieda body is present, but the sub-Stieda and para-Stieda bodies are absent and the sporocyst residuum is composed of small granules in a cluster. Sporozoites have a spheroidal anterior refractile body, a subspheroidal posterior refractile body, and one centrally-located nucleus. This is the third description of an eimerian from the turtle genus Terrapene Merrem and the second from T. ornata. In addition, we report Eimeria ornata McAllister & Upton, 1989 from T. ornata from Texas.
authors.affiliation: Science and Mathematics Division, Eastern Oklahoma State College, Idabel, OK, 74745, USA. cmcallister@se.edu.
authors.forename: Chris T
authors.initials: CT
authors.lastname: McAllister
authors.affiliation: Department of Zoology and Physiology, University of Wyoming, Casper, WY, 82601, USA.
authors.forename: Dagmara
authors.initials: D
authors.lastname: Motriuk-Smith
authors.affiliation: Department of Zoology and Physiology, University of Wyoming, Casper, WY, 82601, USA.
authors.forename: Catherine M
authors.initials: CM
authors.lastname: Kerr
authors.affiliation: Department of Zoology and Physiology, University of Wyoming, Casper, WY, 82601, USA.
authors.forename: Kristine N
authors.initials: KN
authors.lastname: Carmen
authors.affiliation: Department of Zoology and Physiology, University of Wyoming, Casper, WY, 82601, USA.
authors.forename: R Scott
authors.initials: RS
authors.lastname: Seville
authors.affiliation: Life Sciences, Northwest Arkansas Community College, Bentonville, AR, 72712, USA.
authors.forename: Matthew B
authors.initials: MB
authors.lastname: Connior
mesh_terms: D000818:Animals; D001131:Arkansas; D004539:Eimeria / Q000145:classification* / Q000166:cytology; D033661:Oocysts / Q000166:cytology; D013045:Species Specificity; D034101:Sporozoites / Q000166:cytology; D014426:Turtles / Q000469:parasitology*