Any of various tiny, chiefly freshwater turbellarian flatworms associated with the purchase Tricladida, having smooth, broad, ciliated bodies, a three-branched digestion hole, and the capacity to regenerate body parts.
some of numerous freshwater flatworms, of family members Planariidae, particularly of this genus Planaria.
among Planarida, or Dendrocœla; any turbellarian worm.
A member associated with suborder Planarida.
free-swimming mostly freshwater flatworms; well-known in laboratory scientific studies when it comes to capability to replenish lost parts