All types of Tapeworms in Dogs are usually not harmful. If you see your dog dragging its anus across the floor, it is usually irritated due to segments that broke off the tapeworm.
Sometimes worms will move from the intestines to the stomach. If this happens, your dog will probably vomit up the worm. Common symptoms include malaise and mild diarrhea.
Types of Tapeworms In Dogs
I read this. But I've got to say yuck!