| Publication Type: | Conference Paper |
| Year of Publication: | 1910 |
| Authors: | von Graff |
| Conference Name: | Proceedings of the Seventh International Zoological Congress, Boston, 19-24 August 1907 |
| Publisher: | The University Press, Cambridge MA |
| Conference Location: | Boston |
| Keywords: | Macrostomum Systematics |
| Abstract: | Mentions: |
| Notes: | not copied |