basis of recordGofas, S.; Le Renard, J.; Bouchet, P. (2001). Mollusca. in: Costello, M.J. et al. (eds), European Register of Marine Species: a check-list of the marine species in Europe and a bibliography of guides to their identification. <em>Patrimoines Naturels.</em> 50: 180-213., available online athttp://www.vliz.be/imisdocs/publications/ocrd/254404.pdf[details]
additional sourceKorobkov, I.A. (1954). Справочник и методическое руководство по третичным моллюскам: пластинчатожаберные [= A handbook and methodical guide to Tertiary molluscs: Lamellibranchiata]. Gosudarstvennoye nauchno-tekhnicheskoye izdatel'stvo neftyanoy i gorno-toplivnoy literatury, Leningrad, 444 pp., available online athttps://www.geokniga.org/books/6177 page(s): 76 [details]
redescriptionCoan, E. V.; Valentich-Scott, P. (2012). Bivalve seashells of tropical West America. Marine bivalve mollusks from Baja California to northern Peru. 2 vols, 1258 pp.[details]
subsequent type designationICZN. (1966). Opinion 769. <i>Yoldia</i> Möller, 1842, and <i>Portlandia</i> Mörch, 1857: Designation of type-species under the plenary powers. <em>Bulletin of Zoological Nomenclature.</em> 21 (2): 97-100., available online athttp://biodiversitylibrary.org/page/12222834[details]
Present Inaccurate Introduced: alien Containing type locality