New Host and Distribution Records of Eimeria callospermophili

摘要

Eimeria callospermophili, and for the first time in Arizona, U.S.A. This coccidian was found in 4 of 10 (40%) round-tailed ground squirrels. Sporulated oocysts were spheroidal to subspheroidal, 20.4 x 17.8 mu m (18-25 x 14-22 mu m, with a length/width ratio of 1.1 (1.0-1.3), an oocyst residuum, and 0-2 polar granules. Sporocysts were ovoidal, 9.2 x 6.8 mu m (7-10 x 6-8 mu m), with a length/width ratio of 1.2 (1.1-1.4), a Stieda body, and a sporocyst residuum. The measurements and structural features of these oocysts were similar to those reported for E. callospermophili from other marmotine rodents.