Mesocestoides spp. tetrathyridia were first recorded in Turkey in April and December 2006, from Anatololacerta danfordi individuals. Tetrathyridia were found encapsulated in the livers of the host animals. Although prevalence of infection was low, its intensity was very high. Both morphological and histological features of tehtrathyridia were determined. The morphological examination revealed the absence of buds, multiple scoleces, or any other evidence of asexual proliferation.