Sur les turbellaries de la lagune de Ghar-el-Melh: recherche du pouvoir de la regeneration chez Monocelis fusca Oersted [Turbellaria, Monocelididae]

The Turbellarian Monocelis fusca Oersted is abundant in the lagoon of Ghar-el-Melh. Traumatic regeneration in this animal is realised for the first time. Transversal sections through two levels of the body are made, and pointed out the presence or the absence of regeneration ability with the considered fragment