Moniezia expansa
Below is the Life Cycle, Information & a List of  the Related Websites
Don't Forget the Worms! (Parasites) - Pipevet.com
Tapeworms do not do as much damage to sheep as roundworms. The greatest concern is that if large numbers of worms are present they can physically block the intestinal tract and cause death.

This page was last updated on: October 26, 2008
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Description: Length may be up to 600 cm. They are long, flat and ribbon-like in appearance. The body of the adult consists of hundreds of segments which are essentially egg-filled (gravid) sacs (proglottid) that break off and pass into the feces.

Symptoms: There are no specific symptoms but infestation can cause loss of weight and poor wool production. Proglottid resembling cooked rice grains sometimes appear in feces of infested animals.

Prevention:  Proper anthelmintics and pasture management. There is an apparent acquired immunity in animals over one year of age.

Information and illustration from infovets.com