title: A new species of Eimeria (Apicomplexa: Eimeriidae) from the northern myotis, Myotis septentrionalis (Chiroptera: Vespertilionidae), in Oklahoma.
abstract: During September 2004, 4 adult northern myotis, Myotis septentrionalis, were collected from LeFlore County, Oklahoma (n  =  2), and Logan (n  =  1) and Yell (n  =  1) counties, Arkansas, and their feces examined for coccidian parasites. Three of 4 bats (75%) were passing oocysts of Eimeria spp. Oocysts of Eimeria tumlisoni n. sp. were subspherical, 17.6 × 16.8 (16-19 × 14-18) µm with a shape index of 1.0 (1.0-1.1). A micropyle and oocyst residuum were absent, although 1-2 bilobed polar granules were often present. Sporocysts were ovoidal, 10.5 × 5.9 (9-12 × 5-7) µm with a shape index of 1.8 (1.6-2.0). A Stieda body was present, but substieda and parastieda bodies were absent. A sporocyst residuum was present consisting of compact to dispersed granules between the sporozoites. The sporozoites were elongate, with subspherical anterior refractile body and spherical posterior refractile body; a nucleus was not discernable. This is the second coccidian reported from this host and the first instance of a bat coccidian reported from Oklahoma. We also document a new geographic record for Eimeria catronensis in Oklahoma and provide an emended description.
authors.affiliation: Science and Mathematics Division, Eastern Oklahoma State College, Idabel, Oklahoma 74745, USA. cmcallister@se.edu
authors.forename: Chris T
authors.initials: CT
authors.lastname: McAllister
authors.forename: R Scott
authors.initials: RS
authors.lastname: Seville
authors.forename: Zachary P
authors.initials: ZP
authors.lastname: Roehrs
mesh_terms: D000818:Animals; D001131:Arkansas; D002685:Chiroptera / Q000469:parasitology*; D003048:Coccidiosis / Q000469:parasitology / Q000662:veterinary*; D004539:Eimeria / Q000145:classification* / Q000302:isolation & purification / Q000648:ultrastructure; D005243:Feces / Q000469:parasitology; D008857:Microscopy, Interference; D009825:Oklahoma; D033661:Oocysts / Q000145:classification / Q000648:ultrastructure; D033761:Spores, Protozoan