original description
(of Ptychotrema (Parennea) connollyi Dupuis & Putzeys, 1922) Dupuis, P. & Putzeys, S. (1922). Notes sur la faune malacologique africaine. <em>Annales de la Societe Royale Zoologique de Belgique.</em> 53: 40–45., available online at https://www.biodiversitylibrary.org/page/16372382
page(s): 40, fig. 1. [details]
original description
(of Ptychotrema (Parennea) dykeanum Spence, 1923) Spence, G.C. (1923). Mollusca from the Belgian Congo (II). <em>Journal of Conchology.</em> 17: 19–24, pl. 1.
page(s): 20, pl. 1, fig. 6. [details]
basis of record
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): 39, fig. 31. [details] Available for editors [request]
From editor or global species database