@article {1805, title = {Studies on the Probursalia (Freshwater Triclade) of Hokkaido. I. On two new species of the genus Dendrocoelopsis Kenk, D. lacteus and D. ezensis}, journal = {Bulletin of the Kyoto Gakugei University. Series B.}, year = {1958}, pages = {9-18}, author = {Ichikawa, A. and Okugawa, K.I.} }