Turbellarians taxon details
original description
Ruebush, T. K.; Hayes, W. J. Jr. (1939). The genus Dalyellia in America II. <em>Zoologischer Anzeiger.</em> 128: 136-152.
page(s): 136; note: The species/name is introduced in the Introduction of the article (p. 136) for a a population that was identified as P. affinis by Ruebush (1935) [details] Available for editors 
original description (unavailable nomenclaturally)
Ruebush, T. K. (1935). The occurence of Provortex affinis Jensen in the United States. <em>Zoologischer Anzeiger.</em> 111: 305-308.
note: Ruebush originally identified the Virginian populations as Provortex affinis (Jensen, 1878). [details]