Access

You are not currently logged in.

Access your personal account or get JSTOR access through your library or other institution:

login

Log in to your personal account or through your institution.

If You Use a Screen Reader

This content is available through Read Online (Free) program, which relies on page scans. 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 palustris sp. n. and Isospora hammondi sp. n. (Coccidia: Eimeriidae) from the Marsh Rice Rat, Oryzomys palustris (Harlan)

William P. Barnard, John V. Ernst and Robert O. Stevens
The Journal of Parasitology
Vol. 57, No. 6 (Dec., 1971), pp. 1293-1296
DOI: 10.2307/3277983
Stable URL: http://www.jstor.org/stable/3277983
Page Count: 4
  • Read Online (Free)
  • Subscribe ($19.50)
  • Cite this Item
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 palustris sp. n. and Isospora hammondi sp. n. (Coccidia: Eimeriidae) from the Marsh Rice Rat, Oryzomys palustris (Harlan)
Preview not available

Abstract

Eimeria palustris sp. n. and Isospora hammondi sp. n. are described from the marsh rice rat, Oryzomys palustris, from Alabama. The ellipsoidal oocysts of E. palustris measure 19 to 28 by 16 to 21 µ (mean 23.7 by 18.1 µ), and sporocysts are 12 to 15 by 7 to 9 µ (mean 13.6 by 7.5 µ). A polar granule is present, but an oocyst residuum is absent. Prepatent and patent periods averaged 3.3 and 4.7 days, respectively. The ovoid oocysts of I. hammondi measure 24 to 30 by 16 to 21 µ (mean 27.1 by 18.9 µ), and sporocysts are 13 to 18 by 11 to 15 µ (mean 16.0 by 11.9 µ). The oocysts lack a micropyle, oocyst residuum, polar granule, and Stieda bodies. Prepatent and patent periods averaged 5.3 and 3.5 days, respectively. This is the first report of prepatent and patent periods of an Isospora species from a rodent.

Page Thumbnails

  • Thumbnail: Page 
1293
    1293
  • Thumbnail: Page 
1294
    1294
  • Thumbnail: Page 
1295
    1295
  • Thumbnail: Page 
1296
    1296