@article{Turbellarians:SourceID:235875, author = {Stimpson, W.}, journal = {Proceedings of the Academy of Natural Sciences of Philadelphia}, title = {Prodromus descriptionis animalium evertebratorum, quae in Expeditione ad Oceanum Pacificum Septentrionalem a Republica Federata missa, Johanne Rodgers Duce, observavit et descripsit. Pars I, Turbellaria Dendrocoela.}, url = {https://archive.org/details/prodromusdescrip00stim}, year = {1857} }