Raillietina tetragona

Raillietina tetragona (synonym Taenia tetragona Molin) is a parasitic tapeworm belonging to the class Cestoda. It is a cosmopolitan helminth of the small intestine of pigeon, chicken and guinea fowl, and is found throughout the world.

It is a very typical of cestode with striking resemblance to other species of Raillietina. Its identifying features are, therefore, mainly on the neck and scolex structures. In addition, it is relatively large, and requires ant as intermediate host to complete its life cycle.