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Acta Parasitologica

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Volume 62, Issue 2 (Jun 2017)


Helminth (Cestoda, Nematoda) and coccidian (Apicomplexa: Eimeriidae) parasites of the eastern small-footed myotis, Myotis leibii (Chiroptera: Vespertilionidae) from Arkansas, with a description of a new species of Eimeria

Chris T. McAllister
  • Corresponding author
  • Science and Mathematics Division, Eastern Oklahoma State College, Idabel, Oklahoma 74745, USA
  • Email:
/ R. Scott Seville
  • Department of Zoology and Physiology, University of Wyoming, Casper, Wyoming 82601, USA
/ Charles R. Bursey
  • Department of Biology, Pennsylvania State University-Shenango, Sharon, Pennsylvania 68421, USA
Published Online: 2017-04-18 | DOI: https://doi.org/10.1515/ap-2017-0044


During May and July 2016, 32 eastern small-footed myotis (Myotis leibii) were collected from five counties of northwestern Arkansas and their faeces examined for coccidian parasites. Four of 32 (13%) M. leibii harboured an eimerian that we describe here as new. Oocysts of Eimeria sassei sp. n. were ovoidal to ellipsoidal with a bi-layered wall and measured (length × width, L × W) 18.3 × 15.2 µm, with an L/W ratio of 1.2. A micropyle and oocyst residuum were absent but 1–2 polar granules were present. Sporocysts were ovoidal, 9.6 × 6.3 µm, with an L/W ratio of 1.5. A pronounced, button-like Stieda body was present but substieda and parastieda bodies were absent. A sporocyst residuum was present as distinct aligned or dispersed granules. One bat that we found dead was examined for helminth parasites. It harbored the tapeworm, Vampirolepis sp. and a nematode, Seuratum cancellatum. This is the first coccidian as well as the second helminths reported from M. leibii. In addition, this is the seventh species of coccidian parasite documented from Arkansas bats.

Keywords: Apicomplexa; Coccidia; taxonomy; oocysts; Chiroptera; Vespertilionidae; Eimeria sassei; Arkansas; Myotis leibii; Seuratum cancellatum; Vampirolepis sp


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About the article

Received: 2016-08-26

Revised: 2016-01-16

Accepted: 2016-01-17

Published Online: 2017-04-18

Published in Print: 2017-06-01

Citation Information: Acta Parasitologica, ISSN (Online) 1896-1851, ISSN (Print) 1230-2821, DOI: https://doi.org/10.1515/ap-2017-0044. Export Citation

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