Published online by Cambridge University Press: 18 November 2009
In view of Morgan's (1943) contribution “The Physalopterinae (Nematode) of Aves”, it is unnecessary here to review the literature in this group; but it should be noted that Morgan regards Physaloptera alata as having four pairs of pedunculated papillae on the male tail, whereas Cram (1927), reproducing Rudolphi's (1819) and Seurat's (1914) descriptions, states the number to be five. Ortlepp (1922), Li (1934) and Singh (1949) also described the number as five.