MolluscaBase name details
original description
Verdcourt, B. (1961). Further notes on the genus Ptychotrema Mörch in eastern Africa (Mollusca, Streptaxidae). <em>Archiv für Molluskenkunde.</em> 90: 155–161.
page(s): 159. [details]
basis of record
Bruggen, A. C. van. (1989). Studies on <i>Parennea</i> (Mollusca, Gastropoda Pulmonata: Streptaxidae) additional to the revision by Adam & Van Goethem, 1978. <em>Proceedings of the Koninklijke Nederlandse Akademie van Wetenschappen.</em> 92(1): 1–56.
page(s): 33 [details]
additional source
Adam, W.; Van Goethem, J. L. (1978). Revision du sous-genre Parennea Pilsbry du genre Ptychotrema Mörch (Mollusca-Pulmonata-Streptaxidae). <em>Études du Continent Africain.</em> 5: 1-79.
page(s): 28. [details] Available for editors [request]
additional source
Brown, K. (2023). A guide to the hunter shells. Vol. 2. The Streptaxoidea. The Enneinae, Orthogibbinae, Marconiinae, Odontartemoninae, Streptaxinae and the Diapheridae. ConchBooks, Germany.
page(s): 180 [details]