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Eimeria palumbi, a New Coccidian Parasite (Apicomplexa: Eimeriidae) from the Galapagos Dove (Zenaida galapagoensis)

Thomas E. McQuistion
Transactions of the American Microscopical Society
Vol. 110, No. 2 (Apr., 1991), pp. 178-181
Published by: Wiley on behalf of American Microscopical Society
DOI: 10.2307/3226755
Stable URL: http://www.jstor.org/stable/3226755
Page Count: 4
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Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Eimeria palumbi, a New Coccidian Parasite (Apicomplexa: Eimeriidae) from the Galapagos Dove (Zenaida galapagoensis)
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Abstract

Eimeria palumbi is a new coccidian parasite described from one of eight (12.5%) adult Galapagos doves (Zenaida galapagoensis) living on Genovesa Island in the Galapagos Archipelago. Oocysts of the new species are ovoid to ellipsoid, 24.2 x 21.7 (2722 x 24-19) µm, colorless, with a smooth, double-layered wall; shape index (length/width) is 1.16 (1.05-1.21). A micropyle and polar granules are absent, but an oocyst residuum is present, composed of several irregularly shaped granules loosely held together. Sporocysts are ellipsoid, 15.3 x 8.1 (17-15 x 8-8.5) µm with a smooth, single-layered wall and a protruding, nipple-like Stieda body and no apparent substieda body; shape index is 1.89 (2.12-1.76). Sporozoites lie head-to-tail in the sporocysts, each with one large refractile body near one end and the sporocyst residuum composed of scattered nonunifoorm granules covering the midregion of the sporocyst. No other parasites were found in the fecal contents.

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