title: A new species of Isospora Schneider, 1881 (Apicomplexa: Eimeriidae) from the Bali (Rothschild's) mynah Leucopsar rothschildi (Passeriformes: Sturnidae), and comments concerning the genera Atoxoplasma Garnham, 1950 and Isospora.
abstract: A new species of isosporan (Apicomplexa: Eimeriidae) is reported from the Bali mynah Leucopsar rothschildi (Passeriformes: Sturnidae). Oöcysts of Isospora rothschildi n. sp. are spherical to subspherical, 22.3 x 21.6 (20-26 x 19-23) microm, with a shape index (length/width) of 1.03 (1.00-1.15). A micropyle and oöcyst residuum are absent, but one to many polar granules are present. Sporocysts are ovoidal, 15.9 x 10.6 (15-18 x 9.5-11) microm, with Stieda and substieda bodies and a shape index of 1.50 (1.39-1.65). Each sporocyst contains an ellipsoidal sporocyst residuum, 8.0 x 5.8 (6-11 x 5-8), and each sporozoite contains two refractile bodies. No correlation was found between the presence of coccidian oöcysts in the faeces of some of the birds and Atoxoplasma in blood smears.
authors.affiliation: Division of Biology, Kansas State University, Manhattan 66506, USA.
authors.forename: S J
authors.initials: SJ
authors.lastname: Upton
authors.forename: S C
authors.initials: SC
authors.lastname: Wilson
authors.forename: T M
authors.initials: TM
authors.lastname: Norton
authors.forename: E C
authors.initials: EC
authors.lastname: Greiner
mesh_terms: D000818:Animals; D000836:Animals, Zoo / Q000469:parasitology*; D001717:Birds / Q000469:parasitology*; D005243:Feces / Q000469:parasitology; D007549:Isospora / Q000145:classification* / Q000302:isolation & purification; D013045:Species Specificity