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1 October 2009 New Species of Isospora from the Blue-Crowned Motmot (Momotus momota) from Costa Rica
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Abstract

Two (33.3%) of 6 blue-crowned motmots (Momotus momota) sampled from Costa Rica were positive for a new species of Isospora. Oocysts of Isospora momotana n. sp. have a double, thick, yellow to orange, 2.3 µm ± 0.5 µm (2–3 µm) wall, contain 1 to 3 globular polar granules (1–4 µm), are ovoid with heavy pitting on the outer surface, and measure 29.4 ± 2.3 × 27.5 ± 2.3 (25–33 × 23–31) with an average length∶width ratio of 1.1 (1.0–1.35). Sporocysts are ovoid, contain a residuum composed of large, equal-sized granules, and measure 19.4 ± 1.3 × 12.2 ± 1.1 (16–22 × 10–14) with an average length∶width ratio of 1.6 (1.2–1.91). A small rounded stieda body, continuous with the sporocyst wall, and a prominent triangular substieda body are present. A second Isospora species was observed in 1 bird, but because only a few oocysts were present, a full description is not provided. This is the first report of coccidia from a motmot (Momotidae) and only the third Ispospora species described from the Coraciiformes.

Michael J. Yabsley, Shamus P. Keeler, Samantha E. J. Gibbs, Sabrina N. McGraw, and Sonia M. Hernandez "New Species of Isospora from the Blue-Crowned Motmot (Momotus momota) from Costa Rica," Journal of Parasitology 95(5), 1189-1191, (1 October 2009). https://doi.org/10.1645/GE-2030.1
Received: 18 January 2009; Accepted: 1 May 2009; Published: 1 October 2009
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