title: Eimeria caprina sp. n. from the domestic goat, Capra hircus, from the USA.
abstract: The ellipsoidal to slightly ovoid oocysts of Eimeria caprina sp. n. from the domestic goat, Capra hircus, are 27--40 x 19.5--26 micrometers (mean 31.8 x 23.1 micrometers); their sporocysts are 13--17 x 7--10 micrometers (mean 15.3 x 8.5 micrometers). The oocyst wall is 1.7 micrometers thick, smooth, dark brown to brownish-yellow, and 2-layered. Micropyle, polar granule, and sporocyst residuum are present; micropylar cap and oocyst residuum are absent. These features distinguish the new species from other species in the genus which have a micropylar cap, or are smaller, or have a small micropyle with a small internal plug.
mesh_terms: D000818:Animals; D003044:Coccidia / Q000302:isolation & purification; D004539:Eimeria / Q000254:growth & development / Q000302:isolation & purification*; D005243:Feces / Q000469:parasitology; D006041:Goats / Q000469:parasitology*; D014481:United States