Rolán E. & Ryall P. (2002) A new species of the genus <i>Circulus</i> (Gastropoda, Adeorbidae) from West Africa. <i>Iberus</i> 20(1): 95-98. [June 2002][details]
MolluscaBase eds. (2024). MolluscaBase. Circulus stephani Rolán & Ryall, 2002. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=387726 on 2024-05-02
original descriptionRolán E. & Ryall P. (2002) A new species of the genus <i>Circulus</i> (Gastropoda, Adeorbidae) from West Africa. <i>Iberus</i> 20(1): 95-98. [June 2002][details]
redescriptionOliver J.D. & Rolán E. (2011) The family Tornidae (Gastropoda, Rissooidea) in the East Atlantic, 2. Circulinae. <i>Iberus</i> 29(1): 9-33.[details]