@article{oai:repository.dl.itc.u-tokyo.ac.jp:00037914,
 author = {Ijima, Isao},
 journal = {The journal of the College of Science, Imperial University of Tokyo, Japan = 東京帝國大學紀要. 理科},
 month = {Jun},
 note = {application/pdf},
 pages = {1--307},
 title = {Studies on the Hexactinellida.  Contribution 4.  (Rossellidae)},
 volume = {18},
 year = {1904}
}