An accurate species identification in Taenia infestations is essential to understand the epidemiology and transmission dynamics of different Taenia species and points the way for effective prevention and control of taeniid species as well as development of vaccines and diagnostic tools. Antigenic and morphologic similarities between different cestodes do exist. These similarities could be the cause of overestimated seroprevalence of many of these cestodes. The proteins of the cysts of Taenia hydatigena, Taenia saginata, Echinococcus granulosus and Taenia ovis were extracted and separated with SDS-PAGE. Because the cysts of T. hydatigena were used as a model organism for other cestodes, the proteins of different compartments of the cysts were also extracted separately. Results showed similarities between the extracted proteins from different cestodes with T. hydatigena, so serological tests based on T. hydatigena cysts’ antigens might serve as a diagnostic tool to distinguish between these important parasites.