Traits taxon details
original description
(of Pygmaeodrilus Michaelsen, 1890) Michaelsen, W. (1890). Beschreibung der von Herrn Dr. Franz Stuhlmann im Mundungsgebiet des Sambesi gesammelten Terricolen. <em>Jahrbuch der Hamburgischen Wissenschaftlichen Anstalten.</em> 7: 21-50 + Plates I-IV. page(s): 31 [details] 
basis of record
Eisen, Gustav A. (1900). Researches in American Oligochaeta: with especial reference to those of the Pacific coast and adjacent islands. <em>Proceedings of the Californian Academy of Sciences.</em> 2 (2): 85-276, 10 plates ( v-xiv)., available online at https://www.biodiversitylibrary.org/page/31548399 page(s): 112 [details] 
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