Description of a new species of freshwater sponge Corvospongilla Annandale (Spongillidae) from Diyala River, Iraq

الملخص

The first finding of the genus Corvospongilla is reported from Southwestern Asia.Corvospongilla mesopotamica nov.sp. is described from the river Diyala, Iraq .A diagnostic characters to the present species (C.mesopotamica Annandale) is provided with discussion on its morphology, geographic range and habitat.