original description
(of Proxenetes tuberculatus 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): 281, t. 7, f. 21-27 [details]
taxonomy source
Ax, P. (1971). Zur systematik und phylogenie der Trigonostominae. <em>Mikrofauna des Meeresbodens.</em> 4: 141-220. (look up in IMIS)
page(s): 31, 34–35; note: See taxonomy note! [details] Available for editors [request]
taxonomy source
Den Hartog, C. (1964). A preliminary revision of the Proxenetes group (Trigonostomidae, Turbellaria). I-III. <em>Proceedings of the Koninklijke Nederlandse Akademie van Wetenschappen. Series C. Biological and Medical Sciences.</em> 67: 371-407.
page(s): 395–398; note: See taxonomy note! [details] Available for editors [request]
basis of record
Nivå Bay species list, Sjælland, Denmark (look up in IMIS) [details]
From editor or global species database
Distribution Graff (1882) mentions he found the species in an aquarium and that it is probably from the North Sea. In 1913, he speciefies the probable natural locality to Helgoland. [details]
Taxonomic remark Proxenetes tuberculatus Graff, 1882 was transferred to the genus Ptychopera by Den Hartog (1964: p. 395–398), who provided a redescription and gave new localities. However, Ax (1971) convincingly argues against the identification of Den Hartog's specimens as Proxenetes tuberculatus. As he (implicitely) seems to consider the transfer of Proxenetes tuberculatus to Ptychopera justified, the name is conserved as Ptychopera tuberculata (Graff, 1882) Den Hartog, 1964. The specimen (erronously) redescribed by Den Hartog (1964) as Ptychopera tuberculata , Ax describes as a new species Ptychopera hartogi. [details]
From editor or global species database