The Atypidae of South Africa. Version 1 - Dippenaar-Schoeman, A. S.; Haddad, C. R.; Foord, S. H.; Lotz, L. N. (South African National Survey of Arachnida Photo Identification Guide, Irene, 2020)
[the 2nd pdf is version 2 from 2022, which differs only slightly and has no different doi]