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Eimeria spp. (Apicomplexa: Eimeriidae) from the Eastern Chipmunk (Tamias striatus) in Pennsylvania with a Description of One New Species
R. Scott Seville and Michael J. Patrick
The Journal of Parasitology
Vol. 87, No. 1 (Feb., 2001), pp. 165-168
Stable URL: http://www.jstor.org/stable/3285195
Page Count: 4
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Intestinal contents of 41 eastern chipmunks (Tamias striatus) from Armstrong County, Pennsylvania, were examined for the presence of Eimeria spp. Three previously named species were identified: E. lateralis (prevalence = 9%), E. ovata (3%), and E. vilasi (74%); 1 new species, Eimeria tamiensis n. sp. (74%), is described here. This report extends the geographic ranges of the named species into Pennsylvania. Sporulated oocysts of E. tamiensis n. sp. are ovoid and 18.6 x 14.5 (16-23 x 12-17) µm, with no micropyle or residuum. Sporocysts are ellipsoid and 8.6 x 5.4 (7-10 x 4-8) µm, with a Stieda body and granular residuum. Prevalences of E. lateralis and E. vilasi were similar to those reported previously. The differences in prevalences may be due to different life-history strategies of high- and low-prevalence Eimeria species.
The Journal of Parasitology © 2001 The American Society of Parasitologists