Schmidtea sp., from the S-W Romania (Platyhelminthes, Tricladida, Dugesiidae)

The morphology and the anatomy of the copulatory apparatus in a Dugesiidae population from the SW Romania are presented. The copulatory apparatus is characterized by intermingled bursal canal musculature and two distinct penis bulbs with two large seminal vesicles. Based on these morphological characters, the population is assigned to the "lugubris-polychroa" group of species, now belonging to the genus Schmidtea (de Vries & Sluys 1991). The copulatory apparatus is also characterised by the presence of an atrial fold, characteristic of S. mediterranea. The assign of the morphotype here presented to the species level is delayed until integrative molecular analysis.