Eisen, Gustav A. (1900). Researches in American Oligochaeta: with especial reference to those of the Pacific coast and adjacent islands. Proceedings of the Californian Academy of Sciences. 2 (2): 85-276, 10 plates ( v-xiv).
279597
Eisen, Gustav A.
1900
Researches in American Oligochaeta: with especial reference to those of the Pacific coast and adjacent islands
Proceedings of the Californian Academy of Sciences