Turbellarians name details
original description
(of Vortex millportianus Graff, 1882) Graff, L., von. (1882). Monographie der Turbellarien 1. Rhabdocoelida. <em>[Book].</em> 1-442, Verlag Wilhelm Engelmann, Leipzig., available online at https://books.google.com/books/about/Monographie_der_Turbellarien.html?id=LT0hAQAAMAAJ
page(s): 359–360 [details] 
additional source
Ruhl, L. (1927). Zur Kenntnis der Biologie, Fortpflanzung und Regeneration der rhadocoelen Turbellarien. Inaug. Diss. Phil. Fakult. Marburg., 67 p., 11 f. part in Zool. Anz. 72: 160-175 180-190
page(s): 9, 13–36 [details]
new combination reference
Graff, L. von. (1905). Marine Turbellarien Orottavas und der Küsten Europas. <em>Zeitschrift fur wissenschaftlige Zoologie.</em> 83: 68-150. With 6 plates., available online at https://www.biodiversitylibrary.org/page/43242488
page(s): 102 [details] 