The first Dugesia species (Platyhelminthes, Tricladida, Dugesiidae) documented for Saudi Arabia: an integrative description.

Exploration of various freshwater bodies in the Kingdom of Saudi Arabia led to the discovery of a new species of Dugesia, thus representing the first documented record of freshwater planarians in this country and the second fully documented record of a naturally sexual population of a Dugesia species in the Arabian Peninsula. Based on morphological, karyological, anatomical, and molecular data, this Dugesia population from Saudi Arabia is here identified as representing a distinct, new species, Dugesia bursagrossa Harrath & Sluys, sp. nov.