Sarcocysts from the tongue muscle of a European badger (Meles meles) are reported for the first time and described by light and transmission electron microscopy. Judging from the ultrastructure of the cyst wall, the parasite is similar to the species Sarcocystis gracilis Rátz, 1909 sensu Erber, Boch & Barth (1978) from roe deer and possibly identical with it. This is noteworthy regarding the intermediate host specificity.

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Muscle samples from six wild and two captive European mouflons (Ovis ammon musimon) in Germany as well as one domestic sheep from a German zoo were infected with sarcocysts (Sarcocystis: Sarcocystidae, Apicomplexa). Sarcocystis tenella and S. arieticanis were identified by light and electron microscopy. Both species are determined for the first time from wild sheep, and this is the first description of S. arieticanis from wild sheep.

Sarcocysts morphologically not distinguishable from Sarcocystis gracilis of roe deer (Capreolus capreolus, Cervidae) were found in the skeletal musculature of dwarf zebu and humpless cattle (Bos taurus, Bovidae). We contribute to the identi®cation of this species by means of scanning electron microscopy. Special attention is paid to the species-speci®c cyst wall structure. Our ®ndings con®rm previous descriptions by light and transmission electron microscopy and support the peculiarity and uniqueness of the cyst wall typè gracilis'.