Traits name details
original description
(of ) Martens, E. von. (1895). Neue Arten von Landschnecken aus den Gebirgen Ost-Afrikas. <em>Sitzungs-Berichte der Gesellschaft naturforschender Freunde zu Berlin.</em> 1895: 120-129., available online at https://www.biodiversitylibrary.org/page/51444431 page(s): 122-123. [details] 
basis of record
Adam, W.; Bruggen, A. C. van; Van Goethem, J. L. (1994). Études sur les mollusques terrestres de l'Afrique, à partir des notes de feu le Dr William Adam. 2. <i>Ptychotrema</i> (<i>Ennea</i>) H. & A. Adams, 1855 (Gastropoda Pulmonata: Streptaxidae). <em>Bulletin de l'Institute Royal des Sciences Naturelles de Belgique, Biologie.</em> 64: 71-97., available online at https://biblio.naturalsciences.be/rbins-publications/bulletin-of-the-royal-belgian-institute-of-natural-sciences-biologie/64-1994/biologie-1994-64_71-97.pdf page(s): 84 [details]
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): 123 [details]
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