title: Coccidia (Apicomplexa) from heteromyid rodents in the southwestern United States, Baja California, and northern Mexico with three new species from Chaetodipus hispidus.
abstract: Fecal samples from 223 heteromyid rodents of 4 genera and 13 species were collected from California, New Mexico, and Texas and from Baja California Norte and Sonora, Mexico. Of these, 84 (38%) were infected with coccidian oocysts; 72 of 84 (86%) infected animals had only 1 species of coccidian. Eleven species of coccidia were identified including 1 cyclosporan and 10 eimerians; the cyclosporan and 2 of the eimerians are described as new species. Sporulated oocysts of Cyclospora angimurinensis n. sp. were subspheroidal, 21.9 x 19.3 (19-24 x 16-22) microns, with sporocysts lemon-shaped, 11.9 x 9.5 (9-15 x 8-11) microns; it was found in 1 of 20 (4%) Chaetodipus hispidus. Sporulated oocysts of Eimeria chaetodipi n. sp. were subspheroidal, 16.7 x 14.6 (13-19.5 x 12-17) microns, with sporocysts ovoidal, 8.7 x 6.6 (7.5-10.5 x 5-7.5) microns; it was found in 3 of 20 (15%) C. hispidus. Sporulated oocysts of Eimeria hispidensis n. sp. were subspheroidal, 20.5 x 17.4 (17-23 x 14-21) microns, with sporocysts lemon-shaped, 9.3 x 7.2 (7.5-10.5 x 5-9) microns; it was found in 4 of 20 (20%) C. hispidus.(ABSTRACT TRUNCATED AT 250 WORDS)
authors.affiliation: Department of Biology, University of New Mexico, Albuquerque 87131.
authors.forename: P L
authors.initials: PL
authors.lastname: Ford
authors.forename: D W
authors.initials: DW
authors.lastname: Duszynski
authors.forename: C T
authors.initials: CT
authors.lastname: McAllister
mesh_terms: D000818:Animals; D003044:Coccidia / Q000145:classification*; D003048:Coccidiosis / Q000469:parasitology / Q000662:veterinary*; D005243:Feces / Q000469:parasitology; D008800:Mexico; D012376:Rodent Diseases / Q000469:parasitology*; D012377:Rodentia; D015206:Southwestern United States