| a new eimeria species (apicomplexa: eimeriidae) infecting onychomys species (rodentia: muridae) in new mexico and arizona. | fecal samples from 3 species of onychomys (rodentia: muridae) captured in new mexico and arizona were examined for coccidia. six of the 59 (10%) were infected with a new species of eimeria. sporulated oocysts (n = 105) of this new species are subspheroidal, 17.4 x 16.1 (14-21 x 13-19) microm, with ellipsoidal sporocysts 10.4 x 5.7 (9-12 x 5-8) microm. this species occurred in 3 of 24 (13%) onychomys arenicola, 2 of 31 (6%) onychomys leucogaster from new mexico, and 1 of 4 (25%) onychomys torridu ... | 1998 | 9920315 |