(syn. Pachyptila Ϯ Salvin's Prion P. salvini) Portmanteau of surname Salvin (after Osbert Salvin (1835-1898) English ornithologist) and genus Prion Lesson, 1829, prion; "In Pachyptila vittata and salvini the feathers encroach on to the lower mandible as far as a line drawn from the opening of the nostrils, thus marking them off from other Prions. The species salvini can always be differentiated from vittata, the genotype of Pachyptila, by the formation of the bill. In vittata the width is always, at least, two-thirds of the length; whereas in salvini the width of the bill is about half the length. The introduction of a new sub-genus for the latter will thus be necessary: Salviprion sub-genus new, genotype P. salvini Mathews, and will be called Salviprion salvini (Mathews 1912)." (Mathews & Hallstrom 1943).