@inbook {5217, title = {Turbellaria (Strudelw{\"u}rmer). I. D. Tier. d. Nord- u. Ostsee. Allgemeiner Teil.}, booktitle = {Die Tierwelt der Nord- und Ostsee 33(IVb)}, year = {1938}, month = {1938}, pages = { - 1-146 pp}, keywords = {Anaperus balticus, Anaperus tvaerminnensis, Aphanostoma auritum, Aphanostoma cavernosum, Avagina aurita, Convoluta saliens, LOCATION, Mecynostomum auritum, Philactinoposthia saliens}, author = {Meixner,J}, editor = {Grimpe,G and Wagler,E and Remane,A} }