Abstract:
Morphologically, nine different species of bovine Einierw were recognised from the faeces of naturally infected calves in North Wales, UK. Various species encountered were E. subspherica, E. :uernii, E. ellipsoidaiisialabarnensis (grouped together as a species complex), E.hovis, E.cvlrndrica. E. canadensis, E. auburnensis, E. brasiliensis, E. viyamingensts and E. pellira. The largest oocyst measured was of E .brasiliensis and the smallest E. subspherica.
