original description
(of Mesostomum echinatum Uljanin, 1870) Uljanin, W. (1870). Die Turbellarien der Bucht von Sebastopol. <em>Berichte des Vereins der Freunde der Naturwissenschaften zu Moskou.</em> 96pp + 7pl.
page(s): 15, t. 5, f. 4 [details] 
new combination reference
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): 283 [details] 
status source
Graff, L. von. (1913). Turbellaria II. Rhabdocoelida. [Das Tierreich, Eine Zusammenstellung und Kennzeichnung der rezenten Tierformen Heft 35/1913]. Berlin, Verlag von R. Friedländer und Sohn, Ausgegeben im Juni 1913., 484 pages. [reprinted 1966, Verlag Von J. Cramer W], available online at https://www.biodiversitylibrary.org/page/883047
page(s): 200 [details] 
status source
Den Hartog C. (1966). A preliminary revision of the Proxenetes group (Trigonostomidae, Turbellaria). VI–X. <em>Proceedings of the Koninklijke Nederlandse Akademie van Wetenschappen. Series C: Biological and Medical Sciences.</em> 69: 97-163. (look up in IMIS)
page(s): 156 [details] Available for editors 
From editor or global species database
Status Graff (1913: p.200) brought the species back in Mesostomum, and considers it a species dubia. Den Hartog mentions also mentions the species as a species dubium, but he mentions it as a species of Proxenetes. [details]