Different parasite stages in tortoises faecal samples (with exception of D2) identified either by CNF- (left) or SAF-technique (right): A1) ascarid egg (Angusticaecum holopterum (left) and two oxyurid eggs (middle, right) within a flotation A2) oxyurid egg and larvae B1) ciliate cyst (Nyctotherus spp.) within a direct smear, B2) trophozoite of Nyctotherus spp. (left) and embryonated ascarid egg (Angusticaecum holopterum right) C1) ciliate cyst (Balantidium spp.) within a direct smear, C2) trophozoite of Balantidium spp. D1) Entamoeba spp. cyst (eight nuclei; not suspicious for E. invadens) within a iodine stained direct smear D2) Entamoeba spp. cyst (eight nuclei; not suspicious for E. invadens) from a snake (unspecified).