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Licensed Unlicensed Requires Authentication Published by De Gruyter April 18, 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, R. Scott Seville and Charles R. Bursey
From the journal Acta Parasitologica


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.


We thank Drs. S.L. Gardner (HWML) and R. Tumlison (HSU) for expert curatorial assistance. This study was supported, in part, by a grant from the National Institute of General Medical Sciences (2P20GM103432), National Institutes of Health to R.S. Seville. A scientific collecting permit was provided to D. Blake Sasse by the Arkansas Game and Fish Commission.


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Received: 2016-8-26
Revised: 2016-1-16
Accepted: 2016-1-17
Published Online: 2017-4-18
Published in Print: 2017-6-1

© 2017 W. Stefański Institute of Parasitology, PAS

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