| isospora piacobrai n. sp. (apicomplexa: eimeriidae) from the masked yellowthroat geothlypis aequinoctialis (gmelin) (passeriformes: parulidae) in south america. | a new coccidian species (protozoa: apicomplexa: eimeriidae) obtained from masked yellowthroat geothlypis aequinoctialis (gmelin) is reported from brazil. isospora piacobrai n. sp. has oöcysts which are subspheroidal to ovoidal, measure 15.8 x 10.5 microm and have a smooth, bilayered wall c. 1.2 microm thick. a micropyle and oöcyst residuum are absent, but a polar granule is present. its sporocysts are ovoidal and measure 15.8 x 10.5 microm. the stieda body is knob-like and prominent, the substie ... | 2010 | 20157796 |