(syn. Pachyptila Ϯ Fairy Prion P. turtur) Gr. ψευδος pseudos false; genus Prion Lesson, 1829, prion; "PSEUDOPRION Coues. ... TYPE. Prion turtur Gould. ... The fringe of laminæ is smaller and weaker, and inflected inwards rather than descending vertically; and it is either restricted to a short space near the base of the bill (turtur, ariel, ?brevirostris) being quite obsolete more anteriorly; or if as in Banksii it extends to the unguis, it is small, weak and inconspicuous. The lateral lamellæ of the bill have scarcely more of development and inflation than in other genera of Procellariinæ, instead of being immensely hypertrophied; and they have a lateral, vertical aspect, instead of a superior nearly horizontal one" (Coues 1866).