A new species of Eimeria Schneider, 1885 (Apicomplexa: Eimeriidae) from Harris’s antelope squirrel Ammospermophilus harrisii Audubon & Bachman (Rodentia: Sciuridae)
- 10 Downloads
Eimeria ammospermophili n. sp. (Apicomplexa: Eimeriidae) is described from 2 of 29 (7%) Harris’s antelope squirrels Ammospermophilus harrisii Audubon & Bachman in Arizona, USA. Sporulated oöcysts of this new species are ovoidal to ellipsoidal, 24–32 × 20–25 (29.0 × 22.7) µm, with a pitted, bi-layered wall, an oöcyst residuum and, occasionally, a polar granule. Sporocysts are ellipsoidal, 10–12 × 7–9 (11.0 × 7.9) µm, with a Stieda body and sporocyst residuum; sporozoites are elongate with a spheroidal anterior refractile body and an ellipsoidal posterior refractile body. In addition, sporulated oöcysts of Eimeria vilasi Dorney, 1962 are described from A. harrisii. This is the first report on the coccidia of this host species.
The research was possible because the Maricopa County Parks and Recreation Department kindly permitted fieldwork within Usery Mountain Regional Park.
Compliance with ethical standards
Conflict of interest
The author declares that he has no conflict of interest.
All applicable institutional, national and international guidelines for the care and use of animals were followed. The protocol (file number 2889) was approved by the Institutional Animal Care and Use Committee of Midwestern University, Glendale, Arizona, USA. Scientific Collecting License SP769543 was issued by the Arizona Game and Fish Department.
- Barnard, S. M., & Upton, S. J. (1994). A veterinary guide to the parasites of reptiles. Volume 1, Protozoa. Malabar: Krieger Publishing Company.Google Scholar
- Best, T. L., Titus, A. S., Caesar, K., & Lewis, C. L. (1990). Ammospermophilus harrisii. Mammalian Species, 366, 1–7.Google Scholar
- Dorney, R. S. (1965). Eimeria tuscarorensis n. sp. (Protozoa: Eimeriidae) and redescriptions of other coccidia of the woodchuck, Marmota monax. Journal of Parasitology, 12, 423–426.Google Scholar
- Fleming, W. J., Georgi, J. R., & Caslick, J. W. (1979). Parasites of the woodchuck (Marmota monax) in central New York state. Proceedings of the Helminthological Society of Washington, 46, 115–127.Google Scholar
- Hoffmeister, D. F. (1986). Mammals of Arizona. Tucson: The University of Arizona Press.Google Scholar
- McAllister, C. T., Upton, S. J., & Earle, B. D. (1991). Eimeria callispermophili and E. morainensis (Apicomplexa: Eimeriidae) from the Mexican ground squirrel, Spermophilus mexicanus (Rodentia: Sciuridae), in south central Texas, USA. Transactions of the American Microscopical Society, 110, 71–74.CrossRefGoogle Scholar
- Wilson, D. E., & Reeder, D. M. (Eds.) (2005). Mammal species of the world (3rd ed.). Baltimore: Johns Hopkins University Press. https://www.departments.bucknell.edu/biology/resources/msw3/. Accessed 25 July 2018.