Eisen, G. (1899). Notes on North-American earthworms of the genus Diplocardia. <em>Zoological Bulletin.</em> 2(4): 161-172., available online athttps://doi.org/10.2307/1535422 page(s): 167 [details]
original descriptionEisen, G. (1899). Notes on North-American earthworms of the genus Diplocardia. <em>Zoological Bulletin.</em> 2(4): 161-172., available online athttps://doi.org/10.2307/1535422 page(s): 167 [details]
redescriptionSmith, F. (1923). A revision of the description of Diplocardia michaelseni Eisen. <em>Transactions of American Microscopical Society.</em> 42(4): 175-179., available online athttps://www.biodiversitylibrary.org/page/42937883[details]