| skrjabinura gnedina, 1933 (nematoda: seuratoidea: seuratidae), in birds from the area de conservacion guanacaste, costa rica with description of a new species. | two species of skrjabinura gnedina, 1933, were collected in the intestines of birds from the area de conservación guanacaste (acg), costa rica. skrjabinura mesoamericana n. sp. inhabits dendrocincla homochroa, calocitta formosa, dendrocolaptes certhia, basileuterus rufifrons, and chordeiles acutipennis. the new species differs from all species of the genus by having dissimilar spicules, the right having a distinctive thin and bent handle on the proximal end. the new species can be further distin ... | 2005 | 15986622 |
| a novel isospora species (apicomplexa: eimeriidae) from warblers (passeriformes: parulidae) of costa rica. | five of 16 (31%) rufous-capped warblers (basileuterus rufifrons) and 2 of 5 (40%) ovenbirds ( seiurus aurocapilla ) sampled from costa rica were positive for a novel species of isospora. oocysts have a thin, smooth, double-layered, colorless wall and measure 22.3 μm ± 1.6 μm × 24.3 μm ± 1.5 μm (19-25 μm × 21-28 μm) with an average length-width (l/w) ratio of 1.0 (1-1.3). oocyst residuum and micropyle are absent, but 0-4 spherical to cigar-shaped polar granules (1-2.5 μm) are present. sporocysts ... | 2014 | 24456073 |