Isospora massardi sp. nov. (Apicomplexa: Eimeriidae) from the white-necked thrush Turdus albicollis (Passeriformes: Turdidae) from Brazil

• Published in: Acta parasitologica 2014-06, Vol.59 (2), p.272-275
• Main Authors: Lopes, Bruno do Bomfim, Berto, Bruno P., Luz, Hermes Ribeiro, Galvão, Gideão da Silva, Ferreira, Ildemar, Lopes, Carlos Wilson G.
• Format: Article
• Language: English
• Subjects: Animal Systematics/Taxonomy/Biogeography; Animals; Apicomplexa; Biomedical and Life Sciences; Biomedicine; Birds; Brazil; coccidia; Ecology; Eimeriidae; Isospora; Isospora - classification; Isospora - cytology; Isospora - isolation & purification; Isosporiasis - parasitology; Isosporiasis - veterinary; Marambaia Island; Medical Microbiology; Microbiology; Microscopy; morphology; oocysts; Original Paper; Parasitology; Passeriformes; Rio de Janeiro; Songbirds - parasitology; Taxonomy; Turdidae; Turdus
• ISSN: 1230-2821; 1896-1851; 1896-1851
• DOI: 10.2478/s11686-014-0240-4

A new coccidian species (Protozoa: Apicomplexa: Eimeriidae) are reported from the white-necked thrush Turdus albicollis Vieillot, 1818, a very common species in South America. Isospora massardi sp. nov. oocysts are subspherical, 18.6 × 17.7 μm, with smooth, bilayered wall, ∼0.9 μm. Micropyle, oocyst residuum are absent, but two polar granules are frequently present. Sporocysts are ovoidal, 14.8 × 9.3 μm. Stieda body is knob-like to rounded and substieda body is rounded. Sporocyst residuum is composed of scattered spherules of different sizes. Sporozoites are vermiform with posterior and anterior refractile bodies and a nucleus. This is the sixth description of an isosporoid coccidium infecting a New World turdid bird.