Michaelsen, W. (1934). The ascidians of the Cape Province of South Africa. <em>Trans. Roy. Soc. South Africa.</em> 22: 129-163.[details] Available for editors
Shenkar, N.; Gittenberger, A.; Lambert, G.; Rius, M.; Moreira da Rocha, R.; Swalla, B.J.; Turon, X. (2025). Ascidiacea World Database. Didemnum stilense Michaelsen, 1934. Accessed through: Odido, M.; Appeltans, W.; BelHassen, M.; Mussai, P.; Nsiangango, S.E.; Vandepitte, L.; Wambiji, N.; Zamouri, N. Jiddou, A.M. (Eds) (2025) African Register of Marine Species at: https://www.marinespecies.org/afremas/aphia.php?p=taxdetails&id=212507 on 2026-09-19
Odido, M.; Appeltans, W.; BelHassen, M.; Mussai, P.; Nsiangango, S.E.; Vandepitte, L.; Wambiji, N.; Zamouri, N. Jiddou, A.M. (Eds) (2026). African Register of Marine Species. Didemnum stilense Michaelsen, 1934. Accessed at: https://www.marinespecies.org/afremas/aphia.php?p=taxdetails&id=212507 on 2026-09-19
original descriptionMichaelsen, W. (1934). The ascidians of the Cape Province of South Africa. <em>Trans. Roy. Soc. South Africa.</em> 22: 129-163.[details] Available for editors
basis of recordVasseur, P. (1969). Deuxième contribution à l'étude des Ascidies de Madagascar région de Tuléar. <em>Bulletin du Museum national d'Histoire naturelle, Paris.</em> 40 (5): 912-933. (look up in IMIS) [details] Available for editors
additional sourceMillar, R. H. (1962). Further descriptions of South African ascidians. <em>Ann. S. Afr. Mus.</em> 46(7): 113-221. (look up in IMIS) [details] Available for editors
Present Inaccurate Introduced: alien Containing type locality