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Eimeria maricopensis n. sp. (Apicomplexa: Eimeriidae) from the Arizona cotton rat Sigmodon arizonae Mearns (Rodentia: Cricetidae) in central Arizona, USA

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Abstract

Eimeria maricopensis n. sp. (Apicomplexa: Eimeriidae) is described from 2 of 15 (13%) Arizona cotton rats Sigmodon arizonae Mearns in Arizona, USA. Sporulated oöcysts of this new species are ovoidal to ellipsoidal, 20–28 × 16–22 (24.9 × 19.2) µm, with a smooth, bi-layered wall; both micropyle and oöcyst residuum are absent, but fragmented polar granule material is present. Sporocysts are ellipsoidal, 11–14 × 6–8 (12.9 × 7.0) µm, with a Stieda body, sub-Stieda body, and sporocyst residuum; sporozoites are elongate with a spheroidal anterior refractile body and a subspheroidal posterior refractile body. In addition, sporulated oöcysts of Eimeria sigmodontis Barnard, Ernst & Dixon, 1974, Eimeria tuskegeensis Barnard, Ernst & Dixon, 1974 and Eimeria webbae Barnard, Ernst & Dixon, 1974 are described from S. arizonae. This is the first report on the coccidia of S. arizonae.

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Acknowledgements

The research was possible because A. T. Still University kindly permitted access to their grounds. Mara D. Giles ably assisted with the fieldwork.

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Authors and Affiliations

  1. Department of Microbiology and Immunology, Midwestern University, 19555 N. 59th Avenue, Glendale, AZ, 85308, USA

    John A. Hnida

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  1. John A. Hnida
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Correspondence to John A. Hnida.

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The author declares that he has no conflict of interest.

Ethical approval

All applicable institutional, national and international guidelines for the care and use of animals were followed. The protocol (file number 2776) was approved by the Institutional Animal Care and Use Committee of Midwestern University, Glendale, Arizona, USA. Scientific Collecting Licenses SP735326 and SP769543 were issued by the Arizona Game and Fish Department.

Additional information

This article was registered in the Official Register of Zoological Nomenclature (ZooBank) as CD638578-7C09-4C52-9A3F-7B14A83775B6. This article was published as an Online First article on the online publication date shown on this page. The article should be cited by using the doi number. This is the Version of Record.

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Hnida, J.A. Eimeria maricopensis n. sp. (Apicomplexa: Eimeriidae) from the Arizona cotton rat Sigmodon arizonae Mearns (Rodentia: Cricetidae) in central Arizona, USA. Syst Parasitol 95, 301–307 (2018). https://doi.org/10.1007/s11230-017-9771-z

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  • DOI: https://doi.org/10.1007/s11230-017-9771-z

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