Traits taxon details
original description
(of ) Burnup, H. C. (1914). On South African Enneae, with descriptions of new species and varieties. <em>Annals of the Natal Museum.</em> 3(1): 29–82, pls iii-v. page(s): 49 [details]
additional source
Bruggen, A. C. van. (1980). Size clines and subspecies in the streptaxid genus <i>Gulella</i> Pfr. (Mollusca, Gastropoda Pulmonata) In southern Africa. <em>Zoologische Verhandelingen.</em> 180: 1–62., available online at https://repository.naturalis.nl/pub/317764 page(s): 16 [details]
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