basis of record: Bernard, P.A. (Ed.) (1984). Coquillages du Gabon [Shells of Gabon]. Pierre A. Bernard: Libreville, Gabon. 140, 75 plates pp. (look up in IMIS) [details]
additional source: Cossignani T. (2006). Marginellidae & Cystiscidae of the World. L'Informatore Piceno. 408pp. [details]
Citation: WoRMS (2013). Marginella helmatina Rang, 1832. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=225455 on 2013-05-25