Taenia pisiformis

Taenia pisiformis is a tapeworm that infects mainly dogs and foxes, very occasionally cats. As intermediate hosts act lagomorphs and rodents. The adult worm is 30 to 150 cm long and 5 mm wide. The rostellum of the scolex bears two rows of hooks with large ( 200-295 microns ) and small ( 130-180 microns ) hook.

The proglottids are trapezoidal with simple, significantly protruding genital pores disposed marginal and erratic. The uterus has come off a relatively long central portion of the 8 to 14 pairs of oblique lateral branches.

Infection of intermediate hosts are determined by recording the oncosphere. In the intermediate host, the pea-sized fins ( Cysticercus pisiformis ), which are mostly localized in the liver or mesentery and can be stored together with heavy infestation to grape-like structures develop.