original description
Gray, J. E. (1824). Shells. in: Parry W.E. (ed.) Supplement to Appendix, <i>Parry's Voyage for the Discovery of a north-west passage in the years 1819-1820, contaning an account of the subjects of Natural History</i>. London: John Murray Appendix 10, Zool.: 240-246. , available online at http://biodiversitylibrary.org/page/33021735
page(s): 241 [details]
basis of record
Huber, M. (2010). <i>Compendium of bivalves. A full-color guide to 3,300 of the world's marine bivalves. A status on Bivalvia after 250 years of research</i>. Hackenheim: ConchBooks. 901 pp., 1 CD-ROM. (look up in IMIS) [details]
From editor or global species database
Nomenclature ICZN opinion 769: placed on official list, specific name of the type species of Portlandia Mörch, 1857 [details]