@inbook{ERMS:SourceID:235917, author = {Ehrenberg, C. G.}, journal = {In: Symbolae physicae (Hemprich F.W. & Ehrenberg C.G., Eds.). Animalia evertebrata exclusis insectis recensuit Dr. CG Ehrenberg. Series prima cum tabularum decade prima. Berolini. }, title = {Phytozoa Turbellaria africana et asiatica. }, url = {http://www.marbef.org/data/aphia.php?p=sourcedetails&id=235917}, year = {1831} }