Donald, J. W. (1889). Descriptions of new species of Carboniferous gastropods. <em>Quarterly Journal of the Geological Society of London.</em> 45(2): 619-625., available online athttps://www.biodiversitylibrary.org/page/36940464[details]
original descriptionDonald, J. W. (1889). Descriptions of new species of Carboniferous gastropods. <em>Quarterly Journal of the Geological Society of London.</em> 45(2): 619-625., available online athttps://www.biodiversitylibrary.org/page/36940464[details]