R. L.  Palma, ?A New Synonymy and New Records of Quadraceps (Insecta, Phthiraptera, Philopteridae) from the Galapagos Islands?, New Zealand Journal of Zoology, vol. 22, no. 2, pp. 217 - 222, 1995.

R. L.  Palma, ?The species of Saemundssonia (Insecta : Phthiraptera : Philopteridae) from skuas (Aves : Stercorariidae)?, New Zealand Journal of Zoology, vol. 27, no. 2, pp. 121 - 128, 2000.

R. L.  Palma, ?The identity of Nirmus obtusus and other Quadraceps species (Phthiraptera: Philopteridae) from Clipperton Island and the Galàpagos Islands?, Journal of the Royal Society of New Zealand, vol. 24, no. 3, pp. 267 - 276, 1994.