Eimeria ahsata Honess from domestic sheep (ovis aries) in Italy.

Examination for coccidia of 20 domestic sheep (Ovis aries) from a farm in Rome Province revealed the following 5 species: Eimeria ahsata Honess, E. intricata Spiegl, E. ovina Levine & Ivens, E. ovinoidalis McDougald, and E. parva Kotlán, Mócsy & Vajda. Of these species, only E. ahsata was not previously reported in Italy. For this reason, a description of this coccidium and a statistical analysis of size differences between E. ahsata and E. ovina are given.