MolluscaBase eds. (2024). MolluscaBase. Schwartziella willetti (A. M. Strong, 1938). Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=593625 on 2024-05-03
basis of recordSleurs W.J.M. (1989) A zoogeographical analysis of the rissoinine fauna of the eastern Pacific with special reference to a comparison with the Caribbean fauna and with a checklist of the eastern Pacific Rissoininae Stimpson, 1865 (Mollusca: Gastropoda). <i> Annales de la Société Royale Zoologique de Belgique</i> 119(2): 155-164.[details]