@article{oai:repository.dl.itc.u-tokyo.ac.jp:00037867, author = {Ikeda, Iwaji}, journal = {The journal of the College of Science, Imperial University of Tokyo, Japan = 東京帝國大學紀要. 理科}, month = {Nov}, note = {application/pdf}, pages = {1--64}, title = {On Three New and Remarkable Species of Echiuroids (Bonellia miyajimai, Thalassema toenioides and T. elegans)}, volume = {21}, year = {1907} }