MolluscaBase name details
original description
Preston, H. B. (1913). Diagnoses of new species and varieties of agnathous Mollusca from Equatorial Africa. <em>Proceedings of the Zoological Society of London.</em> 81 (2): 194-218, pl. 32-35. [30 May]., available online at https://www.biodiversitylibrary.org/page/31994693
page(s): 204. [details]
source of synonymy
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): 58. [details] Available for editors [request]