Abstract
AbstractThree new coccidian (Apicomplexa, Eimeriidae) species from the sayaca tanager, Thraupis sayaca, from Brazil, are reported in the current study. Isospora sanhaci sp. nov. oocysts are spherical to subspherical, 22.1 × 21.0 μm, with smooth, bilayered wall, ∼1.0 μm. Micropyle, oocyst residuum and polar granule are absent, while Stieda and substieda bodies are present. Sporocysts are elongated, 17.0 × 9.9 μm. Sporocyst residuum is present, sporozoites have one refractile body and a nucleus. Isospora sayacae sp. nov. are spherical to subspherical, 28.9 × 27.4 μm, with smooth, bilayered wall, ∼1.3 μm. Micropyle, oocyst residuum and polar granule are absent, while Stieda and substieda bodies are present. Sporocysts are bottle-shaped, 23.4 × 11.8 μm and containing a sporocyst residuum and sporozoites with one refractile body and a nucleus. Isospora silvasouzai sp. nov. are spherical to subspherical, 25.5 × 22.6 μm, with a smooth, bilayered wall, ∼1.0 μm. Micropyle and oocyst residuum are absent, but one polar granule is present. Sporocysts are pyriform ellipsoidal, 17.6 × 10.5 μm. Stieda and substieda bodies and sporocyst residuum are present and sporozoites have one refractile body and a nucleus.
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